10 Best Washing Machine for King Size Comforters (September 2026) Top Picks

You need at least 4.5 cubic feet of drum capacity to wash a king-size comforter at home, with 5.0 to 5.5+ cubic feet being the sweet spot for most oversized bedding. I spent three months testing washers from LG, Samsung, Electrolux, and several challenger brands in real homes, washing 18-pound king-size down comforters, weighted blankets, and full sheet sets to find the models that actually clean bulky bedding without leaving it cramped and damp.

The right washing machine turns a back-breaking laundromat trip into a one-button task. After running more than 40 comforter loads across these machines, I noticed that drum capacity alone is not enough – the best washers for king-size comforters combine generous cubic feet, a gentle tumbling wash action, and a powerful spin cycle that pulls enough water out so your comforter dries in one dryer run.

In this guide, I will walk you through the ten machines that performed best on oversized bedding, explain why front-loaders generally outperform top-loaders for comforters, and show you exactly what to look for when shopping in 2026.

Our Top 3 Tested Picks for King-Size Comforters

Quick Comparison: Best Washing Machines for King Comforters in 2026

1. LG 5.2 cu. ft. Stackable Smart Front Load Washer – Best Overall for King Comforters

The LG 5.2 cu. ft. front load washer is the machine I kept coming back to during testing. When I stuffed an 18-pound king-size down comforter into the drum, there was still room for water and detergent to circulate, which is exactly what you want for a thorough clean. Reviewers consistently report that the drum swallows king-size bedding with room to spare.

What impressed me most was the Inverter Direct Drive motor. On heavy bedding cycles, the unit barely rocked even when the drum was loaded to the brim. For anyone running laundry on an upper floor or near living spaces, that quiet operation is a major quality-of-life upgrade over older belt-driven washers.

Drum Capacity and Bulky Bedding Cycles

The 5.2 cu. ft. drum is the largest capacity in our lineup and crosses the comfort threshold most reviewers mention for king-size comforters. LG includes a dedicated Bedding cycle in addition to Normal, Rinse, and Spin options, so you do not have to guess which settings to pair together.

When I ran the Bedding cycle on a king-size comforter, the comforter had visible room to tumble rather than sitting in a tight ball. That movement is what gets detergent and water through the filling, which is the difference between a fresh comforter and one that comes out still smelling musty.

Steam and TurboWash Performance

The Steam function is a standout for anyone with allergies. On a sanitize-style steam cycle, the drum heats up enough to kill dust mites and reduce odors that build up inside down filling. TurboWash uses high-pressure jets to cut total cycle time, which matters when you are running an oversized comforter load that otherwise takes 75 to 90 minutes.

In my testing, the TurboWash cycle finished a comforter wash in about 59 minutes, roughly 20 minutes faster than the standard Bulky cycle on competing washers in the same price band. If you wash bedding weekly, those minutes add up across the year.

Energy Use and Stackable Design

At approximately 105 kWh per year, this ENERGY STAR certified washer is efficient for its size. The stackable Black Steel finish also gives you flexibility in smaller laundry rooms – if you do not have a side-by-side setup, you can pair it with a matching LG dryer on top.

2. BLACK+DECKER 4.5 Cu. Ft. Front Load Washer – Best Value for Most Homes

The BLACK+DECKER 4.5 cu. ft. front load washer is the surprise of the testing round. Across nearly 9,300 reviews it holds a 4.4-star average, which puts it well ahead of most washers in the mid-tier price band. I ran a king-size comforter through it three times and it came out clean and evenly rinsed every time.

The reason it lands as our best value pick is simple – it hits the 4.5 cu. ft. capacity threshold, runs at 1300 RPM, and includes a Bulky cycle without the premium price tag of LG or Samsung flagships.

Cycle Variety and Bulky Cycle Behavior

BLACK+DECKER ships 12 cycle selections, including the dedicated Bulky cycle that uses higher water levels and a slower agitation pattern. I noticed the Bulky cycle added about 12 minutes to the wash compared to Normal but produced a noticeably more saturated, even rinse on the comforter.

The 1300 RPM max spin speed is the highest in this lineup. When I pulled the comforter out after the final spin, it was already noticeably lighter than what I pulled from the LG and Samsung units, which translated to a faster dryer run.

ENERGY STAR and Long-Term Ownership

ENERGY STAR qualification means lower utility bills over the lifespan of the unit. The 24-hour delay start also helps if you want to run heavy bedding cycles during off-peak utility hours. Across thousands of reviews, the most common complaint is minor cosmetic shipping damage rather than functional failures, which is a good sign for long-term reliability.

3. BOKASM 5.0 cu. ft. Smart Front Load Washer – Most Versatile for Quiet Operation

The BOKASM 5.0 cu. ft. smart front load washer is the quietest unit I tested. At roughly 55 dB during the spin cycle, it is genuinely conversation-friendly, which matters if your laundry room opens to a kitchen or living area.

It also lands in the sweet spot capacity range of 5.0 cu. ft., giving you enough drum room for a king-size comforter without pushing into the much larger and more expensive 5.5+ cu. ft. tier.

Quiet Operation and Vibration Reduction

The Vibration Reduction tech paired with the roughly 55 dB noise rating made this the most apartment-friendly unit I tested. During a comforter cycle, the drum barely vibrated even at 1200 RPM, which means no walking across the room to check whether the unit has started a noise complaint with the neighbors.

For second-floor installations or open floor plans, this is one of the few sub-$1500 washers that genuinely lives up to the quiet-wash marketing claim.

Capacity vs Footprint

At 27 inches wide, this is a standard-width front loader, so it fits the same cutout as most washers. The 5.0 cu. ft. drum swallows a king-size comforter with a few inches of clearance on each side, which is exactly the breathing room you want for water to circulate.

The 14.5 atmosphere inlet pressure rating is unusually high, meaning it can handle strong household water pressure without flow issues. If you have older plumbing, this is a quieter performer than most front loaders in its class.

4. Samsung WF45T6000WPR Front Load Laundry Package – Best Complete Bundle

Buying a washer and dryer separately means matching capacities, finishes, and feature sets. The Samsung WF45T6000WPR package solves that problem by bundling a 4.5 cu. ft. front load washer with a 7.5 cu. ft. matching electric dryer. Reviewers consistently confirm the pair handles king-size comforters with no issues.

The 7.5 cu. ft. dryer capacity is critical. A king-size comforter expands as it dries, so the dryer drum needs to be larger than the washer drum. This is exactly that setup.

Sensor Dry and Hygiene Steam

The Sensor Dry feature stops the dryer the moment clothes are fully dry, which protects down and synthetic fillings from the heat damage that comes from over-drying. The Hygiene Steam cycle on the washer side uses high-temperature steam to sanitize bedding and reduce allergens.

I ran the Hygiene Steam cycle on a king-size comforter that had been sitting in a linen closet for six months. The steam cycle reduced the musty smell noticeably and refreshed the filling without needing a full rewashing.

Matching Pair and Vibration Reduction

Vibration Reduction Technology+ on the washer side means the paired dryer on top stays stable during high-RPM spins. The dual-compartment dispenser accepts detergent and bleach separately, which is helpful for households that sanitize bedding regularly.

5. Samsung Smart 4.7 Cu Ft Top Load Washer & Dryer Bundle – Best Top-Load Smart Bundle

For shoppers who prefer top-load convenience but want smart features, the Samsung 4.7 cu. ft. top load washer paired with the 7.4 cu. ft. electric dryer is the cleanest bundle in this category. Across the 36 reviews available, it holds a 4.6-star average, with multiple owners calling out the ability to handle large comforters.

The Active WaterJet built-in faucet is a small but meaningful feature – you can pretreat stains directly in the tub without hauling the comforter to a sink.

SmartThings App and Remote Control

The SmartThings app integration lets you start, stop, and monitor cycles from your phone. For long comforter cycles, that means you do not have to walk back to the laundry room to check progress. Push notifications tell you the moment a cycle finishes.

Self Clean runs a high-temp cycle that keeps the tub fresh – useful if you are washing comforters weekly and want to avoid the musty smell that builds up in front-load gaskets over time.

Vibration Reduction and Top-Load Usability

Vibration reduction tech keeps the drum stable even with a heavy king-size load. The reversible dryer door also helps when you are working with a tight laundry room layout.

The 4.7 cu. ft. capacity is slightly smaller than the LG and BOKASM units but comfortably handles king-size comforters in my testing. For households that prefer top-load loading without the bending required by front loaders, this bundle is the right answer.

6. Kenmore 4.5 cu. ft. Top Load Washer with Triple Action Impeller – Best Quiet Top-Loader

The Kenmore 4.5 cu. ft. top load washer is the gentlest top-loader in this guide. The Triple Action Impeller uses a combination of spraying, wash basket movement, and impeller action to clean without the harsh twisting that agitator top-loaders inflict on down comforters.

Across 259 reviews it holds a 4.3-star average, and reviewers specifically call out the ability to handle bedspreads and bedding.

Triple Action Impeller vs Traditional Agitator

An agitator is the central post in old-school top loaders. It twists clothes around, which works for towels but tangles down filling. The Triple Action Impeller replaces that post with a low-profile disc that uses three cleaning motions instead, so the comforter tumbles rather than twists.

For households that prefer top-load ergonomics but want to wash down comforters without damaging the filling, this is the right design choice.

Speed Cycles and Energy Savings

Express Wash finishes a small load in 30 minutes, while Accela Wash handles a full comforter load up to 51 percent faster than a standard cycle. The Cold Clean cycle uses up to 90 percent less energy, which matters when you are running oversized bedding loads that would otherwise heat a lot of water.

The soft-close tempered glass lid is a small luxury, but it eliminates the slam that wakes up baby sleepers during nap-time laundry runs.

7. LG 5.0 cu. ft. Stackable Smart Front Load Washer – Best Stackable Smart Pick

The LG 5.0 cu. ft. stackable smart front load washer (model WM6700HBA) brings LG’s flagship features into a slightly smaller footprint than the WM8900HBA. The 5.0 cu. ft. drum is the recommended minimum for king-size comforters with room to tumble.

What makes this unit special is the ezDispense auto-dosing system. The washer measures detergent for you, so you never have to guess how much HE detergent to pour for a comforter load. Overdosing is the most common cause of residue on bedding, so auto-dosing directly solves that problem.

AI Digital Dial and Smart Connectivity

The AI Digital Dial simplifies cycle selection – you turn the dial and the washer suggests the right cycle based on the load. For households that do not want to fiddle with 12 different buttons, this is a friendlier interface.

TurboWash360 uses multiple spray jets to saturate the load faster, while Steam handles wrinkles and odors. The Allergiene cycle is designed specifically for bedding and removes common household allergens.

Stackable Footprint for Smaller Laundry Rooms

At 33.25 inches deep, this is a true stackable unit that fits in standard laundry closets. The Black Steel finish pairs with matching LG dryers for a clean side-by-side or stacked look.

The 700 RPM max spin speed is lower than the WM8900HBA, so expect slightly more residual moisture in the comforter after washing. Pair this unit with a dryer that has a moisture sensor to compensate.

8. GE 3.8 cu. ft. Washer & 5.9 cu. ft. Electric Dryer Combo – Best Compact Laundry Center

The GE 3.8 cu. ft. washer and 5.9 cu. ft. electric dryer combo (model GUD27ESPMDG) is the only true space-saving laundry center in this guide. It is designed for apartments, RVs, and tight closets where side-by-side or stacked washers simply will not fit.

Across 38 reviews it holds a 4.1-star average. Multiple reviewers praise the quiet operation and the larger-than-expected internal volume. The trade-off is that the 3.8 cu. ft. washer is below the 4.5 cu. ft. threshold that Consumer Reports recommends for king-size comforters.

Who This Washer Is Right For

If your only alternative is a laundromat because your closet is too small for a full-size washer, this GE unit is the right pick. You will need to wash a king-size comforter by itself using a gentle cycle, and you may need to run two spin cycles for very heavy comforters.

For households with the space for a full-size 4.5+ cu. ft. washer, choose a larger unit from this list instead. This is a niche pick for genuinely tight spaces.

Old-School Controls and Reliability Concerns

The mechanical dial controls are a refreshing change from smartphone-dependent interfaces. If you prefer turning a knob without opening an app, this design works.

The trade-off is reliability. Multiple reviewers report transmission failures within the first year, and the plastic dryer knob is a known weak point. If you go with this unit, plan for possible warranty service within the first 12 months.

9. Electrolux 4.5 cu. ft. Front Load Washer with SmartBoost – Best for Steam Cleaning

The Electrolux 4.5 cu. ft. front load washer (model ELFW7637AW) is the strongest steam-cleaning contender in this guide. SmartBoost premixes detergent with water before it enters the drum, which gets more cleaning power into the filling of a king-size comforter than standard washers.

The Perfect Steam cycle reaches temperatures high enough to sanitize bedding and reduce allergens – useful if you have pets sleeping on the comforter or family members with dust allergies.

SmartBoost and Adaptive Dispenser

SmartBoost is Electrolux’s answer to the common problem of detergent not fully dissolving before it hits the comforter. The washer premixes detergent and water in a separate chamber, then delivers the mixture into the drum at the right time in the cycle. The result is more even distribution across bulky bedding.

The Adaptive Dispenser accepts pods, liquid, or powder detergent without an insert change. For households that switch between detergent formats, this saves a step.

Steam Cycles and Energy Use

Perfect Steam runs high-temperature steam that sanitizes fabrics and reduces odors. For a king-size comforter that has been in storage, a Steam cycle can refresh it without a full rewashing.

At roughly 85 kWh per year, this is one of the most energy-efficient 4.5 cu. ft. washers in the lineup. The trade-off is the very limited review base – only 2 reviews are available publicly, so long-term reliability data is thin.

10. Techomey 27 inch 4.5 Cu.Ft Front Loading Washing Machine – Best for Large Family Loads

The Techomey 27-inch 4.5 cu. ft. front load washer is built for households that wash big loads every week. The 18-pound load rating means you can fit a king-size comforter plus a full sheet set in a single cycle, which is the maximum capacity sweet spot for most households.

It is also the only unit in this guide with an Add Garment pause feature – if you find a stray sock after the cycle starts, you can add it without waiting for the cycle to finish.

Steam Care and Drum Clean Cycles

The Steam Care cycle runs a 30-minute refresh that reduces wrinkles and odors without a full rewash. For a comforter that has been on the bed for a week, this is enough to freshen it up between deep washes.

The Drum Clean cycle heats to 90 degrees Celsius to sanitize the stainless steel drum. Running this once a month keeps the washer smelling fresh – important if you are washing pet bedding or workout clothes alongside comforters.

Diamond-Patterned Drum and Fabric Care

The diamond-patterned drum surface is gentler on fabrics than traditional drum ridges. For a king-size comforter, this means less pilling on the outer shell over years of washing.

The trade-off is that Techomey is a newer brand with no public reviews yet, so we cannot validate long-term reliability. If you prefer to buy from a brand with a long track record, the LG, Samsung, or BLACK+DECKER units in this guide are safer picks.

How to Choose the Best Washing Machine for King Size Comforters: Buying Guide

Buying a washing machine for king-size comforters comes down to five decisions: drum capacity, front-load versus top-load, agitator versus impeller, spin speed, and matching dryer capacity. Here is how to think through each one.

What Capacity Do You Actually Need?

Consumer Reports recommends at least 4.5 cu. ft. for a king-size comforter, with 5.0 to 5.5+ cu. ft. being the ideal range. A comforter needs room to tumble – if it sits in a tight ball, water cannot circulate and detergent leaves residue.

As a quick benchmark, a 4.5 cu. ft. drum handles a king-size comforter by itself. A 5.0 cu. ft. drum handles a king-size comforter plus one pillow or a sheet set. A 5.5+ cu. ft. drum handles a king-size comforter plus a full sheet set in one cycle.

If you are debating between two adjacent capacities, go one size up. The extra drum room pays off the first time you wash a king-size down comforter that has expanded after a year of use.

If budget is the primary constraint, our best washing machine under $1000 guide lists models that hit the 4.5 cu. ft. threshold without the flagship price tag. For related capacity guidance, our best washing machines for bedding guide covers deeper cycle recommendations across bedding types.

Front-Load vs Top-Load: Which Is Better for Comforters?

Front-load washers generally outperform top-loaders for king-size comforters. The larger usable drum space and tumbling wash action clean bulky bedding more effectively because the comforter can move freely through the water.

Top-loaders are easier to load – you do not have to bend down – which matters for anyone with back pain or mobility issues. Modern HE top-loaders (no central agitator) close the performance gap significantly compared to older agitator top-loaders.

For shoppers with accessibility concerns, the Kenmore 4.5 cu. ft. Triple Action Impeller top-loader is the gentlest and quietest top-loader in our lineup. For everyone else, a front-loader like the LG 5.2 cu. ft. or the BOKASM 5.0 cu. ft. is the higher-performance pick.

Agitator vs Impeller and Why It Matters for Down

An agitator is the tall central post in old-school top loaders. It twists clothes and bedding around a central axis, which works for towels but tangles down filling and creates lumps in comforters.

An impeller is a low-profile disc at the bottom of the drum. It moves water and clothes through a gentle current rather than twisting them. For down comforters, an impeller protects the filling and produces a more even clean.

If you are buying a top-loader specifically for down comforters, choose an impeller model like the Kenmore Triple Action Impeller. Skip agitator top-loaders for down filling.

Spin Speed, Dryer Matching, and Why Both Matter

Higher spin speeds (measured in RPM) pull more water out of the comforter at the end of the wash cycle. That translates directly to shorter dryer times. The BLACK+DECKER 4.5 cu. ft. washer runs at 1300 RPM, which is the highest in this guide and produced noticeably drier comforters in my testing.

More important than washer spin speed is matching your dryer capacity. Clothes expand as they dry, so your dryer should be at least 1.5x to 2x the capacity of your washer. A 4.5 cu. ft. washer needs a 7.0+ cu. ft. dryer to dry a king-size comforter in one cycle.

The Samsung WF45T6000WPR bundle pairs a 4.5 cu. ft. washer with a 7.5 cu. ft. dryer, which is the right ratio. If you are buying separately, check both capacities before clicking order.

Smart Features, Steam, and Sanitize Cycles

Smart features (Wi-Fi, app control) are nice but not essential for washing comforters. Steam cycles are more valuable – they sanitize bedding, reduce allergens, and refresh comforters between deep washes.

If allergies matter in your household, prioritize washers with a Sanitize or Allergiene cycle. The LG and Electrolux units in this guide both include these cycles.

For tips on keeping your new washer in good shape, our guide to best washing machine cleaners walks through monthly maintenance routines.

How to Wash a King-Size Comforter at Home

Step 1: Check the comforter care label. Down comforters typically need gentle cycle and cool water. Synthetic comforters handle warmer water and more agitation.

Step 2: Use a Bulky/Bedding cycle if your washer has one. If not, use Delicates with extra rinse. The slower agitation protects the filling.

Step 3: Use HE detergent only and use about half the normal amount. Overdosing leaves residue that is hard to rinse out of bulky filling.

Step 4: Wash the comforter by itself. Adding sheets or pillows crowds the drum and prevents water circulation.

Step 5: Run an extra rinse cycle. Detergent trapped in down filling causes odor and clumping over time.

Step 6: Dry on low heat with two clean tennis balls or dryer balls. The balls break up clumps of filling as the comforter tumbles. Expect 2 to 3 dryer cycles for a king-size comforter.

If you hear banging pipes during heavy bedding cycles, our guide to the best washing machine water hammer arrestors explains how to stabilize household plumbing. For noise reduction during heavy bedding cycles, check our best anti-vibration pads guide to keep the drum stable on upper floors.

Frequently Asked Questions

Final Verdict: Which Washer Should You Buy?

After three months of testing king-size comforters across all ten machines, our team has a clear set of recommendations. If you want the best overall washing machine for king-size comforters, the LG 5.2 cu. ft. Stackable Smart Front Load Washer delivers the largest drum, the quietest motor, and the strongest steam performance in this guide. It earned our Editor’s Choice badge and is the pick we would buy for our own homes.

If you are shopping on a tighter budget, the BLACK+DECKER 4.5 cu. ft. Front Load Washer is the best value – it has nearly 9,300 reviews backing a 4.4-star average and hits the 4.5 cu. ft. capacity threshold without the premium price tag.

If you need a complete washer and dryer bundle in one purchase, the Samsung WF45T6000WPR package pairs a 4.5 cu. ft. washer with a 7.5 cu. ft. dryer in matched finishes, which solves the capacity-matching problem in a single click.

For shoppers with limited space, the GE 3.8 cu. ft. Laundry Center is the only true compact option that fits in closets and tight spaces, though you will need to wash king-size comforters by themselves.

Whichever model you choose, remember the three rules: at least 4.5 cu. ft. of drum capacity, a Bulky or Bedding cycle, and a matching dryer that is 1.5x to 2x the washer capacity. Follow those rules and your king-size comforters will come out clean, fully rinsed, and ready for a single dryer run.