The Coop Cool+ is the clearest upgrade Coop has shipped in years for hot sleepers, combining a phase-change gel cover with plus-shaped foam that breathes about 50% better than the original Eden. Tom's Guide and HGTV both crowned it the best adjustable cooling pillow of the year, and the 100-night trial makes the price easier to stomach. It is the pillow to pick if you also want the adjustability of shredded fill, not just contact-cooling.
Full review
Cooling Performance in Hot Sleep
The Cool+ is the first Coop pillow to integrate a true phase-change material into the cover, and the difference shows up in independent contact-temperature testing. Coop publishes a Q-max score of 0.48 out of a maximum 0.50 for the cover fabric — a figure that beats cotton, bamboo, silk, and Tencel in the same lab protocol. Q-max measures how quickly heat transfers from your skin to the fabric, so a high score correlates with that initial cool-to-the-touch hit reviewers describe.
Real Homes tester Annie Collyer summarized her husband's overnight experience in plain language: 'It's super cool to the touch — and it stays cool throughout the night meaning you never have to flip your pillow for coldness again.' Mattress Clarity reviewer Elisa Regulski reached the same conclusion, noting the gel memory foam pieces 'help pull heat away from the body' and that the pillow 'will sleep cooler than the Coop Original.' Tom's Guide named it the best adjustable cooling pillow of the year on the strength of the dual-firmness flip — one side is the firmer, supercooled PCM layer; the other is a softer cushioning surface for nights when you just want loft.
What separates the Cool+ from the original Eden in temperature-control testing isn't the gel beads alone but the combination of three independent cooling mechanisms working in series: the PCM cover absorbs and stores excess heat, the gel-infused plus-shaped foam dissipates trapped warmth through its open geometry, and the heat-wicking inner liner moves moisture away from your skin before it can compound the heat-trapping effect that ruins most foam pillows in summer. CNN Underscored, HGTV, and Apartment Therapy reviewers each pointed to a different one of these layers as the primary reason they'd recommend it for hot sleepers — which is a useful indicator that there's no single point of failure.
Real-World Performance Across Seasons
Reviewers who've owned the Cool+ across both summer and winter consistently report the cooling effect is most noticeable in warm bedrooms (75°F and above) where heat-trapping pillows become genuinely uncomfortable. In moderate temperatures the pillow simply feels neutral — neither warm nor cool — which is the goal. In a cold bedroom, the PCM layer absorbs less heat from your skin because there's less to absorb, so the cool-touch sensation is subtler but still present.
Apartment Therapy's tester noted that the dual-firmness flip is genuinely useful across seasons: they slept on the firmer PCM side during summer months when cooling mattered most, then flipped to the softer cushioning side during winter when they preferred a gentler cradle. That kind of seasonal adjustability isn't possible with most cooling pillows, where the cooling cover is a single fixed surface.
Construction and Materials
Inside the cool-touch cover sits Coop's proprietary Oomph Cool+ fill — gel-infused, plus-shaped memory foam pieces blended with microfiber. The plus shape is the under-the-hood story: by adding airflow channels between fill pieces, Coop says the new geometry is roughly 50 percent more breathable than the solid blocks in the original Eden, which is why heat doesn't pool under your skull the way it does in traditional shredded-foam pillows.
The cover itself is a two-piece interlocking system. The outer case is the cool-touch knit with the PCM layer; the inner liner is heat-wicking and removable for washing. Both layers are CertiPUR-US and GREENGUARD Gold certified — the latter is the relevant one if VOC off-gassing matters to you. Reviewers consistently report no chemical smell out of the bag, a known weak spot of cheaper memory-foam pillows.
Loft and Adjustability
The Cool+ ships overstuffed and includes a separate bag of extra Oomph fill plus a storage pouch for what you take out. The zipper runs the length of the gusset, so removing fill is straightforward — pull out a handful, store it, sleep on the result, repeat until your neck is happy. Most side sleepers leave it close to as-shipped; back sleepers typically pull a third out; stomach sleepers may need to remove more than half.
The 2-inch gusset keeps the fill from migrating to the corners overnight, which is the failure mode of cheaper shredded-foam pillows. Tom's Guide called out the dual-firmness flip — one side feels noticeably firmer and cooler than the other — as the feature that justifies the price gap over the original Eden. If you sleep hot and prefer a firmer feel, you sleep on that side; if you want softer cradling and don't mind giving up a bit of cooling, you flip.
Care and Durability
Both cover layers are machine-washable on cold gentle and tumble-dry-low. The plus-shaped foam fill is not — that's standard for any shredded-foam pillow, but worth knowing if your kids treat pillows like trampolines. The fill itself is rated to retain shape for at least three years of nightly use, and the included Extra Oomph refill bag means you can re-stuff a flattened pillow at year three or four instead of replacing it.
Coop backs the Cool+ with a 5-year warranty against manufacturing defects and a 100-night sleep trial — generous on both axes for a pillow this premium. Real Homes ran the cover through repeated wash cycles during testing and reported no visible cooling-performance degradation, which is the failure mode you'd most fear with any PCM-coated fabric.
Where It Falls Short
The Cool+ is heavy. The queen comes in north of 4 lb fully filled, which means re-fluffing or moving the pillow around feels more like wrestling than gentle adjustment. Down-alternative pillows like the Cozy Earth Silk feel feathery by comparison. If you tend to grab and reposition your pillow several times a night, that weight will start to register.
The cooling is real but not unlimited. Reviewers note the initial cool-to-touch sensation does dial back somewhat after extended contact — your body heat is, eventually, going to win against the PCM cover, and a hot bedroom with no air movement will compress the runway further. The pillow doesn't ship with a cooling pillowcase recommendation, but most users find the cooling persists better when the cover faces you directly rather than under a heavy cotton case.
Who It's Best For
Pick the Cool+ if you want adjustability and cooling in the same product. It's the best fit for combo sleepers who shift positions overnight, side sleepers who need to dial the loft to a specific neck angle, and menopausal sleepers who want a cool surface they can re-shape mid-night without waking a partner.
Skip it if you primarily sleep on your stomach — even pulled half-empty, the loft will still feel high — or if you prefer the airy, weightless feel of a down or down-alternative pillow. For those buyers, the Cozy Earth Silk Pillow or a traditional latex pillow like the Saatva will feel more familiar, just with less raw cooling bite.
How It Compares to Alternatives
Versus the Slumber Cloud UltraCool, the Cool+ wins on adjustability but trades roughly even on cover temperature regulation — UltraCool's NASA-derived Outlast PCM is the better-known cooling tech, but Coop's Q-max numbers are competitive. Versus the Purple Harmony, the Cool+ gives up some breathability (Purple's Hex grid moves air more freely) but offers an adjustable loft Purple's fixed three-height SKU strategy can't match.
Against the Saatva Latex Pillow, the Cool+ sleeps cooler on contact but isn't as naturally airy through the fill — latex's pinhole structure is hard to beat for whole-pillow airflow. The price is roughly comparable. Most reviewers who tested both said the choice came down to whether you preferred the foam's adaptive cradle or the latex's springy push-back.
Value at This Price
At $149 queen / $169 king the Cool+ sits at the upper end of the adjustable-foam pillow market, where Coop has been the dominant brand for years. The cooling tech, dual-firmness flip, included Extra Oomph refill bag, 100-night trial, and 5-year warranty collectively justify the premium versus the $80-100 Coop Original or third-party shredded-foam pillows.
The pillow is also HSA/FSA eligible if your insurance plan covers sleep accessories — that quietly knocks 20-30 percent off the effective price for many buyers. Combined with Coop's frequent 20-percent-off holiday sales, most patient shoppers can land the queen for around $120.
Strengths
- +Phase-change gel-infused plus-shaped foam keeps the surface measurably cooler than the original Coop Eden
- +Dual-firmness flip design: one side runs supercooled and firmer, the other softer and cushioning
- +Adjustable fill with included extra Oomph bag — shape it from pancake-flat to chunky side-sleeper loft
- +Cool-touch cover scores Q-max 0.48 of a maximum 0.50, beating cotton, bamboo, silk, and Tencel
- +GREENGUARD Gold and CertiPUR-US certified with a 100-night sleep trial and 5-year warranty
Watch-outs
- −At $149 queen / $169 king it costs more than most adjustable foam pillows
- −Cooling sensation fades modestly with prolonged head contact even with the PCM cover
- −Heavy at over 4 lb queen — re-fluffing the shredded fill takes more effort than a down alternative
How it compares
More adjustable than the Slumber Cloud UltraCool and the Saatva Latex Pillow, both of which fix loft at the factory. Sleeps measurably cooler than the Cozy Earth Silk Pillow once you actually put a case on it, because the Cool+ cover keeps its bite through cotton. The Purple Harmony beats it on raw airflow, but the Cool+ is the only pillow here you can rebuild from a flat 3-inch profile to a 7-inch slab in two minutes.
Who this is for
At a glance: Hot sleepers who also want adjustable loft — combo sleepers, side sleepers who shift positions, menopausal sleepers who need a configurable cool surface they can re-shape mid-night.
Why you’d buy the Coop Sleep Goods Cool+ Adjustable Pillow
- Phase-change gel-infused plus-shaped foam keeps the surface measurably cooler than the original Coop Eden.
- Dual-firmness flip design: one side runs supercooled and firmer, the other softer and cushioning.
- Adjustable fill with included extra Oomph bag — shape it from pancake-flat to chunky side-sleeper loft.
Why you’d skip it
- At $149 queen / $169 king it costs more than most adjustable foam pillows.
- Cooling sensation fades modestly with prolonged head contact even with the PCM cover.
- Heavy at over 4 lb queen — re-fluffing the shredded fill takes more effort than a down alternative.
Rating sources
“Because it has gel-infused memory foam, the pillow will sleep cooler than the Coop Original.”
“It's super cool to the touch — and it stays cool throughout the night meaning you never have to flip your pillow for coldness again.”
“Coop EdenCool+ is the best cooling adjustable pillow, with a Q-max score of 0.48 out of the maximum 0.50.”
Our 4.7 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
