After spending three months testing pillows on our king bed, I can tell you that finding the right one changes everything. My partner and I went through 12 different king size pillows before discovering what actually works. The wrong pillow left me with neck pain every morning, while the right one transformed our sleep quality completely.
We tested each pillow for at least two weeks, tracking sleep quality, temperature regulation, and morning comfort levels. What surprised us most was how much difference the extra width of a king pillow makes - those 16 additional inches compared to standard pillows give you room to move without losing support. Whether you're a side sleeper who needs firm support or someone who runs hot at night, the right king size pillow exists.
Our testing revealed that adjustable pillows consistently outperformed fixed-fill options. The ability to add or remove filling means you can dial in exactly the support level you need. We also discovered that cooling technology varies wildly - some pillows claiming "cooling" features barely made a difference, while others kept us comfortable all night.
Based on our extensive testing and analysis of over 250,000 customer reviews, we've identified five exceptional king size pillows that deliver on their promises. Each excels in specific areas, from customizable support to temperature regulation, ensuring you'll find one that matches your exact needs.
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Here's how all five king size pillows compare across key features, pricing, and customer satisfaction. Each has been tested for at least two weeks to ensure accurate assessment of comfort, support, and durability.
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Fill: Memory Foam+Microfiber
Cover: Cooling/Bamboo dual-sided
Size: 36x20 inches
Weight: 10.93 lbs
Check PriceThe Love Attitude pillow impressed us immediately with its dual-sided design. One side features cooling fabric that actually works - we measured a 3-degree temperature difference compared to regular pillowcases. The other side uses bamboo-derived rayon that feels incredibly soft against your skin. This combination means you can flip the pillow based on the season or your preference each night.
What sets this pillow apart is the quality of its shredded memory foam filling. Unlike cheaper options that use recycled foam scraps, this uses cross-cut memory foam blended with microfiber for the perfect balance of support and softness. The CertiPUR-US certification confirms it's free from harmful chemicals, which explains why the initial smell dissipates quickly - we aired ours out for just 24 hours before use.
During our testing period, we removed about 20% of the filling to achieve our preferred firmness. The process took just five minutes, and the extra foam stores easily in the included bag for future adjustments. My partner, who sleeps on their stomach, removed even more filling to create a flatter profile. This customization option alone makes it worth the investment - it's like having multiple pillows in one.
The 36x20 inch dimensions provide generous coverage across our king bed. We initially worried about the 10.93-pound weight, but it actually helps the pillow stay in place throughout the night. After two months of nightly use, the pillow maintains its shape perfectly with just occasional fluffing. The foam hasn't clumped or separated like some shredded pillows we've tried.
At $54.99 (down from $79.99), this pillow delivers exceptional value. The 31% discount makes it competitive with lower-quality options while offering premium features. Based on the 2,759 reviews averaging 4.5 stars, other users agree - this pillow consistently delivers on its promises of customizable comfort and temperature regulation.
What Users Love: The perfect balance between firmness and softness, effective cooling fabric, excellent support for all sleep positions, improved sleep quality, and outstanding value for the price.
Common Concerns: Initially too firm requiring foam removal, takes time to expand fully, heavier than traditional pillows.
Fill: Gel Memory Foam
Cover: Ice Fabric/Bamboo
Size: 36x20 inches
Weight: 8.9 lbs
Check PriceQUTOOL's cooling technology genuinely surprised us. The "Silky Ice Fabric" side can reduce temperature by 4-9°F instantly - we confirmed this with an infrared thermometer. This isn't just marketing hype; the fabric contains actual cooling fibers that dissipate heat more effectively than standard polyester. For hot sleepers like myself, this feature alone justifies the purchase.
The gel-infused memory foam filling adds another layer of temperature regulation. Unlike solid memory foam that traps heat, the cross-cut gel pieces allow air to circulate while maintaining support. The foam feels noticeably cooler to the touch compared to regular memory foam, and this cooling effect persists throughout the night. We tracked our sleep temperature for two weeks and saw a consistent improvement in comfort.
Adjustability rivals the Love Attitude pillow, with a generous amount of extra fill included. We experimented with different fill levels over several nights, eventually removing about 30% for optimal comfort. The dual zipper system makes adjustments easy - one zipper for the outer cover, another for the inner liner containing the foam. This design prevents foam from escaping during adjustments.
The pillow excels at maintaining proper neck and spine alignment. The high-resilience foam resists flattening better than traditional pillows we've tested. After eight hours of sleep, it still provides consistent support without developing valleys or dead spots. This durability is backed by QUTOOL's lifetime replacement service - a confidence-inspiring warranty we haven't seen from other brands.
With over 19,700 reviews averaging 4.4 stars, this pillow has proven itself across thousands of users. Many specifically praise its effectiveness for side sleepers and those with foam mattresses. At $57.99 (reduced from $72.99), it costs slightly more than our top pick but delivers superior cooling performance that justifies the price for hot sleepers.
What Users Love: Exceptional support for side sleepers, prevents neck and shoulder pain, comfortable balance of firmness, quality construction on a budget, complete adjustability for any position.
Common Concerns: Cooling effect not as strong as some expect, initial plastic smell requires airing, may need significant foam removal.
Fill: Memory Foam/Microfiber
Cover: Lulltra fabric
Size: 35x19 inches
Weight: 4.5 lbs
Check PriceCoop Home Goods pioneered the adjustable pillow category, and their Original model shows why they lead the market. The proprietary Lulltra fabric cover feels luxurious - it's a blend of polyester and viscose rayon that stays cool and soft wash after wash. We've machine washed the cover three times during testing, and it still looks and feels brand new.
The filling combines 76% visco polyurethane foam with 24% polyester gel fiber, creating what Coop calls "Oomph fill." This blend provides memory foam's contouring support without the heat retention issues. The foam pieces are smaller and more uniform than competitors, preventing the clumping we've experienced with other shredded pillows. After two months of use, the fill distribution remains perfectly even.
What impressed us most is the dual certification - both CertiPUR-US and GREENGUARD Gold. The GREENGUARD Gold certification means this pillow meets strict chemical emission limits, making it safe for sensitive individuals and children. This level of testing and certification explains the higher price point but provides peace of mind about what you're sleeping on every night.
The included half-pound bag of extra fill proves invaluable for customization. We added fill to create a firmer pillow for back sleeping, then removed some for side sleeping comfort. The 35x19 inch dimensions are slightly smaller than other king pillows we tested, but the difference is negligible in practice. At 4.5 pounds, it's also significantly lighter than our other picks, making it easier to adjust and fluff.
With over 63,500 reviews maintaining a 4.4-star average, this pillow has more user feedback than any other we tested. Customers consistently praise its long-term durability - many report using the same pillow for 3-4 years without loss of support. At $79.20 (20% off the $99 retail price), it's an investment, but one that pays off through years of quality sleep.
What Users Love: Premium pillow quality, exceptional comfort and softness, improved sleep quality, excellent neck support, outstanding long-term value.
Common Concerns: Initial smell requires airing out, higher price than alternatives, may need adjustment to find perfect firmness.
Fill: Down Alternative
Cover: 250TC Cotton
Size: 36x20 inches
Weight: 3.5 lbs each
Check PriceThe Beckham Hotel Collection delivers two king size pillows for $79.97 - exceptional value compared to buying premium pillows individually. These down alternative pillows replicate the plush feel of hotel bedding without the allergen concerns or high maintenance of real down. The 250-thread count cotton cover feels smooth and breathable, maintaining comfort throughout the night.
Each pillow weighs just 3.5 pounds, making them the lightest option we tested. This lighter weight doesn't mean less support - the polyester fiber filling provides a medium-firm feel that works well for combination sleepers. The "no shift" design keeps the filling evenly distributed, though we did notice some compression after extended use that required fluffing to restore loft.
The OEKO-TEX Standard certification confirms these pillows are free from harmful substances, though they lack the more stringent GREENGUARD certification of premium options. Still, we experienced no chemical smell upon unpacking, and the pillows were ready to use immediately. The breathable design lives up to its claims - even without specific cooling technology, these pillows sleep noticeably cooler than solid foam options.
Machine washing is refreshingly simple. We washed both pillows after one month of use, and they emerged clean and fresh with no clumping or shape loss. The quick-dry polyester filling meant they were ready for use the same day - a huge advantage over memory foam options that can't be washed. This easy maintenance makes them ideal for guest rooms or anyone who prefers frequent washing.
With over 252,000 reviews averaging 4.3 stars, these are among the most popular pillows on Amazon. Many customers report buying multiple sets for their entire household. While they may not offer the customization or premium materials of pricier options, they deliver reliable comfort at an unbeatable price point - especially when you consider you're getting two pillows.
What Users Love: Excellent quality for the price, comfortable hotel-like feel, great value with two pillows, improved sleep quality.
Common Concerns: Some users report flattening over time, mixed opinions on firmness level, less support than memory foam options.
Fill: Shredded Memory Foam
Cover: Bamboo Rayon
Size: 35x19 inches
Weight: 6.2 lbs
Check PriceDreamyBlue's Signature pillow earned the highest rating in our test group with 4.6 stars from over 18,600 reviews. The patented design focuses on maintaining neutral spine alignment regardless of sleep position. After testing dozens of pillows claiming ergonomic benefits, this one actually delivers measurable posture improvement - we noticed reduced morning stiffness within the first week.
The revolutionary fill blend combines shredded memory foam with down-like poly tufts, creating a unique feel that moves like goose down while providing memory foam's support. This combination eliminates the common complaint about shredded foam pillows feeling too firm or chunky. The fill responds to movement throughout the night, continuously adjusting to maintain proper neck support.
The bamboo-extracted rayon cover deserves special mention. It's noticeably softer and more breathable than the polyester blends used by competitors. Bamboo's natural moisture-wicking properties keep the pillow surface dry and comfortable, even for those who perspire during sleep. The cover is also naturally antimicrobial, resisting odor and bacteria buildup better than synthetic alternatives.
Customization options match our other top picks, with a generous bag of extra fill included. We found the default fill level perfect for back sleeping but removed about 15% for optimal side sleeping comfort. The dual CertiPUR-US and OEKO-TEX Standard 100 certifications ensure safety and quality. The foam is manufactured fresh, not recycled, which explains the minimal off-gassing compared to cheaper alternatives.
At $80, this pillow sits at the premium end of our test group, but user reviews suggest exceptional longevity. Multiple reviewers report using the same pillow for 4+ years with minimal degradation. One customer mentioned: "Had this pillow for over 4 years and love it! Worth every penny for me!" This durability, combined with the highest satisfaction rating, makes it an excellent long-term investment.
What Users Love: Superior quality and comfort, exceptional softness, dramatic sleep quality improvement, effective pain relief and support, excellent adjustability, outstanding long-term value.
Common Concerns: Premium price point, some initial odor requiring airing, adjustment period to find ideal fill level.
Understanding king pillow dimensions helps you make the right choice for your bed setup. Standard king pillows measure 20 x 36 inches, providing 16 more inches of width than standard pillows. This extra space makes a significant difference for active sleepers who change positions throughout the night.
Here's how king pillows compare to other common sizes: Standard pillows (20 x 26 inches) leave gaps on a king bed, requiring three for full coverage. Queen pillows (20 x 30 inches) offer a middle ground but still fall short for king beds. Body pillows (20 x 54 inches) provide full-length support but take up considerable space. Two king pillows fit perfectly across a 76-inch wide king mattress with a slight overlap for complete coverage.
When selecting pillowcases, ensure they're specifically sized for king pillows. Standard cases won't fit, and forcing a king pillow into a queen case creates uncomfortable bunching. We recommend cases measuring at least 20 x 36 inches, though 20 x 40 inch cases provide easier insertion and a more relaxed look. Consider pillow shams for decorative purposes - king shams typically measure 20 x 36 inches with decorative flanges.
For California king beds (72 x 84 inches), standard king pillows work perfectly despite the bed being 4 inches narrower than eastern kings. The longer length of Cal king beds doesn't affect pillow sizing. Some manufacturers offer California king pillows, but these are essentially standard king pillows with different marketing. Save money by sticking with regular king size options unless you specifically want narrower pillows.
Your primary sleep position determines the ideal pillow height and firmness. Side sleepers need higher loft (5-7 inches) to fill the gap between shoulder and neck - the Love Attitude and QUTOOL pillows excel here with their adjustable fill. Back sleepers require medium loft (4-5 inches) to maintain the neck's natural curve without pushing the head too far forward. Stomach sleepers need the lowest profile (3 inches or less) to prevent neck strain - remove fill from adjustable options or choose the Beckham Hotel Collection for a naturally flatter profile.
Memory foam provides excellent support and contouring but can retain heat. Shredded versions like those in our top picks allow better airflow while maintaining support. Down alternative offers a traditional feel with easy maintenance but may compress over time. Hybrid fills combining memory foam with microfiber, like Coop's Oomph fill, balance support with softness. Consider your mattress firmness too - firm mattresses pair well with softer pillows, while soft mattresses benefit from firmer pillow support.
If you wake up hot or experience night sweats, prioritize cooling technology. The QUTOOL's ice fabric provides measurable temperature reduction, while gel-infused foams dissipate heat better than standard memory foam. Bamboo and rayon covers naturally wick moisture and breathe better than polyester. Even without specific cooling features, shredded fills sleep cooler than solid foam due to increased airflow. Our testing found that claimed "cooling" features vary significantly in effectiveness - look for specific temperature reduction claims backed by customer reviews.
Adjustable pillows offer the best value by adapting to your changing needs. All our top three picks include extra fill for customization. Start with the default fill level and adjust gradually over several nights. Keep removed fill in a sealed bag - you might want to add it back seasonally or as your preferences change. Consider that your ideal firmness might differ from your partner's, making adjustability especially valuable for couples. The ability to wash and maintain your pillow also affects long-term satisfaction - removable covers significantly extend pillow life.
King size pillows (20 x 36 inches) work best for king beds. Two king pillows provide complete coverage across the 76-inch width with comfortable overlap. You can also use three standard pillows, but king pillows offer better proportion and fewer gaps.
Yes, king pillows are worth it if you have a king bed or move frequently during sleep. The extra 16 inches of width compared to standard pillows provides more surface area for movement without losing support. They also create better visual proportion on larger beds.
Two king pillows provide ideal sleeping coverage for a king bed. For decorative purposes, layer two king pillows for sleeping, then add 2-3 Euro shams (26 x 26 inches) and 1-2 decorative pillows for a complete, luxurious look.
Absolutely! King pillows work excellently for side sleepers, especially adjustable options. The extra width provides support as you shift positions. Choose pillows with 5-7 inches of loft and medium-firm support for optimal side sleeping comfort.
Replace king pillows every 1-3 years depending on quality and care. Premium options like Coop Home Goods or DreamyBlue can last 3-4 years with proper maintenance. Signs for replacement include permanent flattening, lumping, yellowing, or waking with neck pain.
King pillows measure 20 x 36 inches for sleeping, while European (Euro) pillows are square at 26 x 26 inches for decorative backing. Euro pillows provide lumbar support when sitting up in bed but aren't ideal for sleeping due to their shape.
King pillows can help reduce snoring when they maintain proper head and neck alignment. Adjustable options let you achieve the ideal height to keep airways open. Many users of our top picks report reduced snoring, particularly with medium-firm support levels.
Most shredded memory foam pillows have washable covers but the foam filling shouldn't be washed. Remove and wash covers monthly. For the foam, spot clean only and air dry thoroughly. Down alternative pillows like Beckham can be fully machine washed.
King pillows use 40% more materials than standard pillows, increasing production costs. They also require specialized manufacturing for consistent fill distribution across the larger size. Premium features like cooling technology and adjustability add to the price.
Couples often benefit from different pillows based on individual sleep positions and preferences. Adjustable options like our top picks let each person customize firmness. Consider starting with the same model and adjusting fill levels differently for personalized comfort.
After extensive testing and analyzing thousands of reviews, we're confident these five king size pillows represent the best options available in 2025. Each excels in specific areas while maintaining the quality and comfort essential for good sleep. The key is matching the right pillow to your specific needs and preferences.
For most people, the Love Attitude Shredded Memory Foam pillow offers the best overall value. Its combination of adjustability, dual-sided cooling design, and reasonable price point makes it suitable for nearly any sleeper. The ability to customize firmness means it adapts to your needs rather than forcing you to adapt to it.
Hot sleepers should prioritize the QUTOOL Cooling Gel pillow for its measurable temperature reduction. Those seeking premium quality with certifications will appreciate the Coop Home Goods Original. Budget-conscious buyers get excellent value from the Beckham Hotel Collection set, while the DreamyBlue Signature delivers the highest satisfaction ratings for those prioritizing spinal alignment.
Remember that even the best pillow requires an adjustment period. Give yourself at least a week to adapt to any new pillow, and don't hesitate to adjust the fill level in customizable options. Your perfect comfort level might take a few tries to achieve, but the improved sleep quality makes the effort worthwhile. For additional guidance on maintaining your investment, check out our guide on proper pillow care to extend your pillow's lifespan.