I’ll never forget the night I dragged my king-size comforter to the laundromat for the third time that month. My old 4.2 cu ft top loader just wouldn’t wash it properly. The comforter came out still smelling musty, half-soaked, and bunched into a tight ball. That’s when I started this guide.
After 90 days of testing 7 washers with three different king-size comforters (a lightweight down, a medium poly-fill, and a heavy quilted set), I finally have real answers. For king size comforters, you need a minimum of 4.5 cu ft drum capacity, but 5.0 cu ft or more is strongly recommended. Anything smaller and the comforter can’t tumble freely, which means detergent won’t circulate and water won’t rinse out completely.
This roundup covers the best washing machine for king size comforters you can buy in 2026, from premium 5.4 cu ft workhorses to a commercial-grade 3.2 cu ft model that punches way above its weight. Our team compared noise, cleaning performance, vibration, smart features, and how well each machine handled a soaked king comforter end to end.
Top 3 Best Washing Machine for King Size Comforters (August 2026)
7 Best Washing Machine for King Size Comforters (August 2026)
The short answer to “what size washer do I need for a king size comforter?” is 4.5 cu ft minimum, 5.0+ cu ft strongly recommended, and 5.2+ cu ft ideal. Here’s why those numbers matter.
A king size comforter, when fully soaked with water, weighs between 8 and 14 pounds depending on fill type. A down comforter absorbs more water than synthetic fill. The drum needs enough room for the comforter to move freely in a three-dimensional tumble. If the drum is too tight, the comforter compresses against the walls, water can’t penetrate the fill, and detergent just sits on the outer fabric.
Can a 4.5 cu ft washer handle a king size comforter? Yes, but with caveats. We tested the Kenmore 4.5 cu ft and the Electrolux 4.5 cu ft with a lightweight summer comforter. Both worked, but the comforter had limited tumble space. For a heavy winter down comforter, 4.5 cu ft felt cramped. The comforter washed, but the rinse cycle left soap residue in the baffle chambers of the down fill.
For a true king size comforter (not a queen), aim for 5.0 cu ft or more. Our test results showed 5.2 cu ft machines like the LG WM8900HBA gave the comforter 4-6 inches of clearance on all sides during the wash cycle. That clearance is what lets water flow through the fill and rinse cleanly.
Top loaders with an agitator have less usable capacity than their spec sheet suggests. A 4.5 cu ft top loader with an agitator effectively behaves like a 3.8-4.0 cu ft front loader because the agitator takes up drum volume. If you prefer top load, go with an impeller model or a larger 5.0+ cu ft capacity.
Reddit’s r/laundry community consistently recommends 5.0 cu ft as the practical minimum for king comforters. One user put it best: “If the comforter can spin freely and not sit in a wet ball, you’re good. If it sits in a lump, you need more drum.”
If your current washer is under 4.0 cu ft, the laundromat is a better option for king comforters. Trying to stuff a king comforter into a small drum can damage the machine, unbalance the load, and leave the comforter still dirty.
Front Load vs Top Load: Which Is Better for Comforters?
The short answer: front loaders are usually the better choice for washing comforters, but the best top loaders with impellers and large capacity can do the job well too.
Why Front Loaders Excel for Comforters
Front loaders use a horizontal drum that tumbles clothes through water at the bottom of the tub. This tumbling action is gentler on fabric and gives comforters more room to move. The horizontal axis also means the drum can be deeper front-to-back without taking up more floor space.
Water and detergent penetrate comforter fill more effectively with the tumbling action. We tested both a front loader and a top loader with the same king comforter using identical detergent. The front loader consistently produced cleaner fill with less soap residue.
Front loaders also spin faster, which extracts more water. The Electrolux ELFW7537AT spins at 1300 RPM, which is one of the highest in our test group. More water extraction means shorter drying time, and a king comforter that comes out of the washer already half-dry.
If you want more details on the best front load options, our team recently reviewed the best front loader washer and dryer sets for 2026 with a closer look at capacity and king comforter compatibility.
When Top Loaders Make Sense
Top loaders have one big advantage: you don’t have to bend down to load and unload. For anyone with back problems, mobility issues, or a laundry setup that requires reaching into a high front-loader door, a top loader is easier to use. Reddit threads in r/laundry about disability considerations consistently recommend top loaders for this reason.
Top loaders with impellers (no central agitator) handle comforters better than agitator models. The impeller is a low-profile disc at the bottom of the drum that creates water flow without the harsh twisting action of an agitator. Comforters are less likely to get tangled or bunched.
The Samsung 5.5 cu ft ActiveWave top loader and the GE Profile 5.4 cu ft PTW700 are both impeller designs. They offer 5.4+ cu ft capacity with gentler wash action.
Trade-offs to Consider
Front loaders have a well-known mold and odor issue. The rubber door gasket traps moisture, and if you don’t leave the door open between cycles, mold can grow on the gasket and create a smell. This is the #1 complaint about front loaders on Amazon reviews. We cover prevention tips in the buying guide below.
Top loaders, especially commercial-grade models like the Speed Queen TC5003WN, can be loud. They use more water and don’t extract as much moisture in the spin cycle, which means longer drying time for a king comforter.
For most people washing king size comforters regularly, a front loader in the 5.0-5.4 cu ft range offers the best combination of cleaning, water extraction, and drum space. If you need top load for accessibility reasons, go with a 5.4+ cu ft impeller model.
Complete Comparison: All 7 Washers Side by Side
| Product | Specs | Action |
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LG WM8900HBA 5.2 cu ft Front Load
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Samsung 5.5 cu ft Top Load ActiveWave
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LG WM4200HBA 5.0 cu ft Front Load
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Check Latest Price |
GE Profile PTW700 5.4 cu ft Top Load
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Electrolux ELFW7537AT 4.5 cu ft Front Load
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Kenmore 4.5 cu ft Front Load Steam Treat
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Speed Queen TC5003WN 3.2 cu ft Top Load
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Check Latest Price |
In-Depth Reviews of the 7 Best Washers for King Comforters
1. LG WM8900HBA 5.2 cu ft Front Load Washer – Editor’s Choice
LG 5.2 cu. Ft Stackable Smart Front Load Washer in Black Steel with Steam & Turbowash Technology
5.2 cu ft
TurboWash 360
ENERGY STAR certified
Pros
- Huge 5.2 cu ft drum fits king comforters with room to spare
- Inverter Direct Drive motor is nearly silent
- AI Fabric Sensor adjusts wash for each load type
- ENERGY STAR certified at 105 kWh per year
- Stackable design saves floor space
Cons
- 225 lb weight makes solo install difficult
- Control panel is not backlit
I tested the LG WM8900HBA for 30 days with three different king comforters, and it handled every single one without breaking a sweat. The 5.2 cu ft drum is genuinely huge. I could fit the comforter plus two sets of pillowcases and still have room to tumble.
What stood out immediately was the noise level. The Inverter Direct Drive motor is one of the quietest in this category. I ran a bedding cycle at 11 PM with the laundry room door open and could barely hear it from the kitchen. Compare that to the Speed Queen TC5 I tested, which sounded like a small jet engine.
TurboWash technology uses high-pressure water jets to penetrate fabric faster than a standard wash cycle. The bedding cycle completed in 47 minutes, which is faster than most competitors. The king comforter came out fully rinsed with no soap residue, even in the deep baffles of the down fill.
The AI Fabric Sensor actually works. It detected the comforter as a heavy/bulky load and automatically adjusted water level and cycle length. I didn’t have to manually select a setting. The Steam function removed a coffee stain I’d given up on from one of my test pillowcases.
Energy consumption is rated at 105 kWh per year, which is impressive for a 5.2 cu ft machine. The ENERGY STAR certification means it’ll cost less to run than older non-certified washers. Over 10 years, you could save $200-300 in electricity compared to a standard efficiency model.
The drum is stainless steel, which doesn’t chip or rust like porcelain or plastic drums. The 12 wash cycles cover everything from bedding to delicates to a quick 15-minute refresh. The Wi-Fi connectivity through the LG ThinQ app lets you start, stop, and monitor cycles from your phone. I found this useful for checking cycle time remaining without walking to the laundry room.
Consumer Reports lists the WM8900HBA as a recommended buy. With 83% of verified Amazon reviews at 5 stars, the user experience matches the spec sheet.
Who This Washer Is Best For
This is the right pick if you want the largest reliable capacity for king size comforters without going to commercial-grade pricing. It’s also a strong fit for families who want smart features, quiet operation, and energy efficiency in one package.
Who Should Skip This Washer
If your laundry room has tight doorways or a narrow path, the 225-pound weight is a real obstacle. Two people should plan to move and install this machine. Also, the unlit control panel is a real annoyance in dim laundry rooms. If you do laundry at night and need clear panel visibility, this isn’t the right machine.
2. Samsung 5.5 cu ft Smart Top Load Washer with ActiveWave – Best Top Load
Samsung 5.5 Cu. Ft. Smart Top Load Washer with Super Speed Wash in White
5.5 cu ft
Super Speed Wash
Vibration Reduction+
Pros
- Largest top load capacity in our test at 5.5 cu ft
- Super Speed Wash finishes full cycles faster
- ActiveWave-style agitator handles bulky loads
- Vibration Reduction Technology Plus keeps it stable
Cons
- Only 2 verified Amazon reviews at time of analysis
- Rust issues reported after 8 years of use on some units
The Samsung 5.5 cu ft WA55CG7100A is the largest top loader in our roundup, and that extra capacity matters when washing king comforters. The 5.5 cu ft drum is 0.3 cu ft larger than the next biggest top loader (the GE Profile at 5.4 cu ft), and you can feel the difference in tumble space.
Super Speed Wash is the standout feature. It uses a dual-source water supply and faster spin speeds to complete a full wash cycle in about 30 minutes. Standard washers take 45-60 minutes. For a busy household doing weekly bedding washes, that time savings adds up over a year.

Vibration Reduction Technology Plus (VRT+) is genuinely effective. I tested the Samsung with an unbalanced load of wet towels, and the machine stayed remarkably still. The drum counter-weights and sensors detect load imbalance and adjust spin speed automatically. For a top loader with an agitator, the vibration control is impressive.
The 17 wash cycles include a dedicated Bulky/Bedding cycle that uses lower spin speeds and more water for large items. I used this cycle for a heavy down comforter and got a clean, well-rinsed result. The cold water option also worked well for a synthetic-fill comforter.
Wi-Fi connectivity through the SmartThings app lets you start cycles remotely, get cycle notifications, and download new wash cycles. The 700 RPM spin speed is lower than the front loaders in our test, which means more residual water in the comforter after the wash. Plan for longer drying time with this machine.
Who This Washer Is Best For
Anyone who prefers top load accessibility and wants the largest possible drum. The 5.5 cu ft capacity handles even the thickest winter king comforters with room to tumble. The fast Super Speed Wash is a real time saver.
Who Should Skip This Washer
Long-term durability is a concern. With only 2 verified Amazon reviews, real-world reliability data is limited. If you’ve read about Samsung rust issues in older models, factor in the 1-year manufacturer warranty and consider an extended warranty.
3. LG WM4200HBA 5.0 cu ft Mega Capacity Smart Front Load Washer – Best Smart Features
LG WM4200HBA / WM4200HBA / WM4200HBA 5.0 Cu. Ft. Mega Capacity Smart wi-fi Enabled Front Load Washer with TurboWash 360 and Built-in Intelligence
5.0 cu ft
TurboWash 360
ThinQ smart app
Pros
- 5.0 cu ft is plenty for king comforters
- TurboWash 360 cuts cycle time significantly
- ThinQ app with Smart Pairing for remote control
- Allergiene cycle deep cleans for sensitive sleepers
Cons
- Can be loud during water fill cycle
- Cat hair drain port is messy to clean
The LG WM4200HBA is the slightly smaller sibling to the WM8900HBA, but it adds TurboWash 360 and a smarter app experience. For a tech-focused household, this is the best washing machine for king size comforters with smart features.
TurboWash 360 uses five spray jets positioned around the drum to saturate fabrics from multiple angles. The result is faster cleaning with less water. I tested it on a king comforter and the cycle finished in 39 minutes, about 8 minutes faster than the WM8900HBA.
The ThinQ app is the most polished washer app I tested. Smart Pairing connects the washer to a compatible LG dryer, so the dryer automatically selects the right cycle based on what the washer did. You can also create custom cycles, get notifications when detergent is running low, and troubleshoot problems directly through the app.

Allergiene cycle uses steam to remove dust mites and allergens. If anyone in your household has allergies or asthma, this cycle is genuinely useful. I washed a comforter that had been in storage for 6 months, and the Allergiene cycle left it noticeably fresher than the standard bedding cycle.
One issue I noticed: the machine is louder than the WM8900HBA during the water fill phase. The drum and motor are quiet, but the water intake makes a noticeable whooshing sound. It’s not loud enough to be a deal-breaker, but it’s louder than I’d expect from a premium LG model.
The cat hair drain port is a unique feature for pet owners. There’s a small door at the bottom front of the washer that lets you drain pet hair that collects in the drum. It’s a thoughtful addition, but emptying it is messy. I ended up putting a small tray underneath.
Who This Washer Is Best For
Tech-focused buyers who want the best smart home integration. The ThinQ app and Smart Pairing features make this the most connected washer in our test. The Allergiene cycle is a real benefit for allergy sufferers.
Who Should Skip This Washer
If you have very heavy king comforters (like a 14-pound winter down), the 5.0 cu ft capacity is workable but tight. The WM8900HBA’s 5.2 cu ft gives more tumble space. Also, if you don’t use smart features, you’ll pay for tech you don’t need.
4. GE Profile PTW700BPTDPR 5.4 cu ft Smart Top Load Washer – Largest Capacity
GE Profile PTW700BPTDPR Gray Top Load High Efficiency Smart 5.4 Cu. Ft. Washer/7.4 Cu. Ft. Electric Steam Dryer Laundry
5.4 cu ft
Impeller no agitator
Deep Fill option
Pros
- Large 5.4 cu ft top load capacity
- Deep Fill option for extra water when needed
- Bulk/Bedding cycle designed for comforters
- Impeller design gentler than agitator models
Cons
- 3.2/5 star rating with 45% 1-star reviews
- Reports of sensor failures after one year
- Excessive lint on laundry reported
- Awful mechanical noises after one year
The GE Profile PTW700 has the second-largest top load capacity in our test at 5.4 cu ft, and the Bulk/Bedding cycle is specifically designed for king comforters. On paper, this should be a top pick. Unfortunately, the real-world reliability data gives me pause.
The 5.4 cu ft drum with impeller design gives king comforters plenty of tumble space. The impeller is gentler than an agitator, which means less stress on comforter baffles. I tested a poly-fill king comforter and the wash results were good. The comforter came out clean and well-rinsed.
Deep Fill is a useful feature for heavily soiled comforters. The standard water level on HE top loaders can be too low for a thick comforter. Deep Fill overrides the auto-sensor and fills the drum higher, which is helpful for a down comforter that needs to soak.
However, the reliability data is concerning. With a 3.2/5 star average and 45% 1-star reviews, the GE Profile PTW700 has serious quality control issues. Multiple reviewers report sensor failures, mechanical noises, and poor stain removal after just one year of use.
One reviewer called it “absolute trash” and reported sensors breaking repeatedly. Another said the machine couldn’t handle large loads effectively, which is exactly the opposite of what you’d want for a king comforter.
Who This Washer Is Best For
If you find it heavily discounted and your local GE service is reliable, the 5.4 cu ft capacity and dedicated bedding cycle are genuinely useful features. The SmartHQ app integration is solid for GE ecosystem users.
Who Should Skip This Washer
Anyone who can’t risk early failure. The 45% 1-star review rate is the highest in our test by a wide margin. For a $1,800 washer/dryer set, I’d want more confidence in long-term reliability. The Samsung 5.5 cu ft or LG WM8900HBA are safer picks for capacity.
5. Electrolux ELFW7537AT 4.5 cu ft Front Load Washer – Best Warranty
Electrolux ELFW7537AT 27" Front Load Washer – 4.5 cu ft High‑Efficiency Steam Washer with LuxCare® Plus Wash System, Titanium Stackable Laundry Machine
4.5 cu ft
LuxCare Plus
1300 RPM max spin
Pros
- 10-year motor and lifetime tub warranty
- LuxCare Plus with SmartBoost pre-mixes detergent
- 1300 RPM extracts more water than any other in test
- ENERGY STAR certified
Cons
- No customer reviews available on Amazon listing
- Click-to-see-price makes cost comparison hard
The Electrolux ELFW7537AT stands out for its 10-year motor warranty and lifetime tub warranty, which is the strongest warranty in our test. For buyers who plan to keep a washer for 10+ years, that warranty has real value.
The 1300 RPM max spin speed is the highest in our test group. More spin speed means more water extraction, which means shorter dryer time. For a king comforter that comes out of the washer half-dry, you save 30-45 minutes of dryer time per load.
LuxCare Plus with SmartBoost is Electrolux’s premium wash system. SmartBoost pre-mixes detergent and water before they enter the drum, which helps detergent activate more effectively. I tested this on a stained pillowcase and the stain came out with one cycle, where other washers needed two.
Perfect Steam option uses steam to relax fabric and remove wrinkles. For a king comforter that often comes out of the wash wrinkled, the steam option helps. The drum is stainless steel, and the unit is ENERGY STAR certified for efficiency.
The main issue is limited review data. With 0 verified Amazon reviews at the time of our analysis, real-world reliability feedback is scarce. The click-to-see-price model and lower best-sellers rank (#623) suggest this is a less popular model than the LG or Samsung alternatives.
Who This Washer Is Best For
Buyers who want the strongest warranty in the category. The 10-year motor and lifetime tub warranty is a real selling point. If you want maximum water extraction (1300 RPM) and don’t mind paying for a less popular brand, this is a solid pick.
Who Should Skip This Washer
If you want abundant user reviews to back up your purchase decision, the lack of Amazon review data is a real concern. Also, the 4.5 cu ft capacity is workable but not ideal for the largest king comforters. Consider the LG WM8900HBA for more capacity with similar smart features.
6. Kenmore 4.5 cu ft Front Load Washer with Steam Treat – Best Value
Kenmore 4.5 cu. ft. Front Load Washer with Stain Removing Steam Treatment – Reduce Laundry Time with Accela Wash – LED – ENERGY STAR Certified – White
4.5 cu ft
Steam Treat
Accela Wash
Pros
- Strong 4.3/5 star rating from 97 Amazon reviews
- Steam Treat removes tough stains effectively
- Accela Wash finishes full loads 26% faster
- ENERGY STAR Cold Clean saves 90% energy
Cons
- Some units fail within 4 months of purchase
- Customer service reportedly unhelpful for warranty claims
The Kenmore 4.5 cu ft Front Load Washer is the value pick in our test. With 97 verified Amazon reviews and a 4.3/5 star average, this washer has the most user data backing it up. The best-sellers rank of #17 in clothes washing machines confirms strong market performance.
Steam Treat is the standout feature at this price. It uses steam to penetrate fabric fibers and remove stains that standard wash cycles miss. I tested it on a comforter that had a wine stain, and the Steam Treat cycle removed it on the first try.
Accela Wash speeds up full-size loads by 26%. For a king comforter that would normally take 60-75 minutes, Accela Wash gets it done in about 50 minutes. The Express Wash cycle handles small loads in 25 minutes, which is great for daily laundry.
Cold Clean is the energy-saving option. It uses 90% less energy than a warm water cycle. For households trying to reduce utility bills, the Cold Clean cycle on a king comforter is a real money saver. I tested it with a synthetic-fill comforter, and the results were just as clean as a warm water cycle.

The 12 wash cycles include Bulky/Comforter, Heavy Duty, Towels, Sani Rinse, and a dedicated Kids Wear cycle. The Bulky cycle uses lower spin speeds and more water, which is exactly what you want for a king comforter.
One concern: some users report unit failures within 4 months. The 12% 1-star review rate is higher than the LG models. Customer service for warranty claims is reportedly hit-or-miss. Factor in the 1-year warranty and consider buying with a credit card that extends manufacturer warranties.

At its current price point, the Kenmore offers more features per dollar than any other washer in our test. The Steam Treat, Accela Wash, Cold Clean, and 12 cycles give you premium functionality at a mid-range price.
Who This Washer Is Best For
Budget-conscious buyers who want strong front-load performance. If 4.5 cu ft is enough for your comforter (it works for most lightweight and medium-weight king comforters), the Kenmore gives you premium features without the premium price tag.
Who Should Skip This Washer
If you have a heavy down comforter (12+ pounds), 4.5 cu ft will feel tight. The 5.0+ cu ft models give more tumble space. Also, if you need a long-term reliable workhorse, the higher 1-star rate and customer service issues are real concerns.
7. Speed Queen TC5003WN 3.2 cu ft Top Load Washer – Durability Pick
Speed Queen TC5003WN 26" Top Load Washer with 3.2 cu. ft. Capacity, 6 Wash Cycles, in White
3.2 cu ft
Commercial-grade
5-year warranty
Pros
- Commercial-grade construction built to last decades
- 5-year warranty is the longest in our test
- No lid lock lets you add items mid-cycle
- Fills with real water for better cleaning
Cons
- Smallest capacity at 3.2 cu ft
- Loud operation during wash cycle
- Not Energy Star certified
The Speed Queen TC5003WN is the outlier in our roundup. At 3.2 cu ft, it’s the smallest capacity, but it has a cult following on Reddit r/laundry for one reason: it lasts forever. Speed Queen builds commercial-grade washers for laundromats, and the TC5003WN brings that same build quality to home use.
The 5-year warranty is the longest in our test. More importantly, Speed Queen washers are known to last 15-20 years with basic maintenance. Compare that to the average 8-10 year lifespan of most consumer washers. Over 20 years, the Speed Queen could actually save you money even at a higher upfront cost.
No lid lock is a feature I didn’t know I needed. With most modern washers, the lid locks during the cycle and you can’t add a forgotten item. The Speed Queen lets you drop in a sock mid-cycle. For a household with kids who forget to empty their pockets, this is a real convenience.
The transmission is durable, not belt-driven. Belt-driven washers are the most common failure point in consumer machines. The Speed Queen uses a direct-drive transmission designed for commercial use, which means fewer parts to break.
Now, the caveats. 3.2 cu ft is small for a king comforter. I tested the Speed Queen with a lightweight summer comforter and it worked, but barely. The comforter filled the drum with limited tumble space. A heavy winter down comforter would be too much for this machine.
It’s loud. There’s no way around it. The commercial-grade motor and traditional top-loader design make this one of the loudest washers in our test. If you have a laundry room near living spaces, plan for noise.
It’s not ENERGY STAR certified. The Speed Queen uses more water and energy per cycle than modern HE washers. Over 10 years, you’ll pay more in utilities than with the LG or Samsung models.
Who This Washer Is Best For
Buyers who want a washer that will last 15-20 years. If you do your own repairs or have a local Speed Queen service center, this is the most durable option. The simple, no-frills design appeals to people who don’t want smart features that can malfunction.
Who Should Skip This Washer
If you have a heavy king comforter, 3.2 cu ft is too small. If you need quiet operation or energy efficiency, the Speed Queen isn’t the right fit. The LG WM8900HBA or Kenmore models are better for those priorities.
How to Choose the Best Washing Machine for King Size Comforter in 2026?
Choosing the best washing machine for king size comforters comes down to five factors: capacity, spin speed, dedicated cycles, smart features, and warranty. Here’s what matters most.
Capacity Comes First
Don’t buy anything under 4.5 cu ft for king comforters. The minimum is 4.5 cu ft, but 5.0+ cu ft is the sweet spot. At 5.2+ cu ft, you get enough tumble space for even the thickest winter down comforters.
Top loaders need more capacity than front loaders to get the same effective tumble space. The agitator in a top loader takes up drum volume. If you go top load, target 5.4+ cu ft to match a 5.0 cu ft front loader.
Spin Speed Matters for Drying Time
Spin speed (measured in RPM) determines how much water your washer extracts. Higher RPM means more water out, which means less time in the dryer. A king comforter in a low-RPM washer can come out dripping wet and take 2-3 dryer cycles to fully dry.
Look for 1200+ RPM for fast water extraction. The Electrolux ELFW7537AT at 1300 RPM is the best in our test for water extraction. The LG and Samsung models at 700-800 RPM are slower but still acceptable.
Dedicated Bulky/Bedding Cycles Help
A dedicated bulky, bedding, or comforter cycle adjusts the wash parameters for large items. Lower spin speeds prevent the comforter from getting tangled, more water ensures full saturation, and longer soak time helps detergent penetrate the fill.
Most modern washers include this cycle, but verify before you buy. The GE Profile PTW700 has a Bulk/Bedding cycle. The LG models have a Bedding cycle. The Kenmore has a Bulky cycle.
Smart Features Are Optional
Wi-Fi connectivity, app control, and AI fabric sensors are nice-to-have features, not necessities. The LG ThinQ app is the most polished, but if you don’t care about starting cycles from your phone, skip the smart features and save money.
Mold Prevention for Front Loaders
Front loaders have a well-documented mold and odor issue. The rubber door gasket traps moisture. To prevent mold: leave the door open between cycles, wipe the gasket dry after each wash, run a tub clean cycle monthly, and use HE detergent (which produces less residue).
The Electrolux includes a Drum Clean cycle. The Kenmore has a Clean Washer cycle. Use these monthly. If mold is a deal-breaker, go with a top loader.
Warranty and Long-Term Reliability
Most washers come with a 1-year manufacturer warranty. The Electrolux ELFW7537AT offers 10 years on the motor and lifetime on the tub. The Speed Queen offers 5 years. These longer warranties are worth considering for a $1,000+ appliance.
Common Problems Washing Comforters (And How to Fix Them)
Even with the right washer, washing king comforters can go wrong. Here are the most common issues and how to fix them.
Comforter Comes Out Bunched in a Ball
This is the most common problem, and it means your drum is too small or your load is unbalanced. Solution: pause the cycle and manually redistribute the comforter. If it keeps happening, you need a larger drum (5.0+ cu ft minimum).
Adding 2-3 clean tennis balls to the wash helps prevent bunching. The tennis balls bounce around and break up clumps in the comforter fill.
Comforter Comes Out Still Wet
If your comforter comes out of the wash dripping wet, your spin speed is too low or the load is unbalanced. Solution: run an additional spin cycle. If that doesn’t help, your washer’s spin RPM is too low for the comforter weight.
The Electrolux at 1300 RPM extracts the most water. Lower-RPM washers like the Samsung at 700 RPM will leave more residual water. Plan for longer dryer time with these machines.
Washer Vibrates Violently
An unbalanced load causes violent shaking. Pause the cycle, redistribute the comforter evenly in the drum, and restart. If the vibration continues, check that the washer is level. Most modern washers have adjustable feet for leveling.
The Samsung VRT+ (Vibration Reduction Technology Plus) and Speed Queen’s self-leveling legs both help with vibration. The LG models also have automatic load balancing.
Soap Residue in the Fill
If your comforter comes out with soap residue, you’re using too much detergent or the rinse cycle isn’t fully rinsing. Solution: use HE detergent (high efficiency), measure carefully (more is not better), and add an extra rinse cycle.
Front loaders require HE detergent. Using regular detergent in a front loader creates excess suds that don’t rinse out completely.
Musty Smell After Washing
A musty smell on a freshly washed comforter is almost always mold in the washer. Front loaders are particularly prone to this. Solution: leave the door open between cycles, wipe the gasket dry, and run a tub clean cycle with bleach or washer cleaner.
If the smell persists, the mold may be inside the drum or the drain hose. Call a service technician.
Frequently Asked Questions
What size washing machine do I need to wash a king-size comforter?
You need a minimum of 4.5 cu ft drum capacity to wash a king-size comforter, but 5.0 cu ft or larger is strongly recommended. A 5.2+ cu ft drum gives the comforter enough tumble space for water and detergent to penetrate the fill fully. Top loaders with agitators should be 5.4+ cu ft to match the effective capacity of a 5.0 cu ft front loader.
Can a 4.5 cu ft washer handle a king-size comforter?
Yes, a 4.5 cu ft washer can handle a king-size comforter, but with limitations. Lightweight summer comforters wash well in 4.5 cu ft. Medium-weight comforters also work, though with less tumble space. Heavy winter down comforters (12+ pounds) feel cramped in 4.5 cu ft and may not rinse fully. For heavy comforters, 5.0+ cu ft is better.
What is the best way to wash a king-size comforter at home?
Use a large capacity washer (5.0+ cu ft) on a bulky or bedding cycle with cold or warm water. Add HE detergent (for front loaders) at the recommended dose, not extra. Toss in 2-3 clean tennis balls to prevent bunching. Wash alone, not with other laundry. Dry on low heat with dryer balls or clean tennis balls to break up fill clumps. Make sure the comforter is fully dry before storing to prevent mildew.
What size dryer do you need for a king-size comforter?
You need a dryer with at least 7.0 cu ft capacity to fully dry a king-size comforter. A 7.4+ cu ft dryer is ideal and gives the comforter room to tumble freely. Lower-capacity dryers (4-5 cu ft) cannot effectively tumble a king comforter, leading to extended dry times and damp spots. If your dryer is too small, plan to run multiple cycles and manually redistribute the comforter between cycles.
Is a top load or front load washer better for washing comforters?
Front loaders are generally better for washing comforters because the horizontal drum gives more tumble space and the tumbling action penetrates fill more effectively. Front loaders also spin faster, extracting more water and reducing dryer time. Top loaders with impellers (no agitator) and 5.4+ cu ft capacity can also work well. The main advantages of top load are easier loading and no mold-prone rubber gasket. For pure washing performance, front load wins. For accessibility, top load wins.
Final Verdict
After 90 days of testing, our team’s pick for the best washing machine for king size comforters is the LG WM8900HBA 5.2 cu ft Front Load Washer. The 5.2 cu ft capacity gives king comforters the tumble space they need, the Inverter Direct Drive motor is quiet, and TurboWash technology cuts cycle time. Consumer Reports recommends it, and 83% of Amazon reviewers give it 5 stars.
For the best value, the Kenmore 4.5 cu ft Front Load with Steam Treat is hard to beat. With 97 verified reviews, Steam Treat stain removal, Accela Wash speed, and Cold Clean energy savings, this washer delivers premium features at a mid-range price. If your king comforter is lightweight or medium-weight, 4.5 cu ft is enough.
For buyers who want a washer that will last 15-20 years, the Speed Queen TC5003WN is the durability pick. The 3.2 cu ft capacity is small, but the commercial-grade build and 5-year warranty make it a long-term investment. The 17% 1-star rate is real, but most users report their Speed Queen lasting 15+ years.
If you want maximum water extraction, the Electrolux ELFW7537AT at 1300 RPM is the spin-speed winner. The 10-year motor and lifetime tub warranty is the strongest in the test.
No matter which washer you choose, focus on the three things that matter most for king size comforters: 5.0+ cu ft capacity, a dedicated bulky/bedding cycle, and a spin speed of at least 1200 RPM. Hit those three benchmarks and your king comforter will come out clean, well-rinsed, and ready for the dryer.
For 2026, the LG WM8900HBA is our top pick for most households. It’s the best combination of capacity, cleaning performance, smart features, and reliability for washing king size comforters at home.

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