Head-to-head · Best Cooling Pillows

Coop Sleep Goods Cool+ Adjustable Pillow vs Cozy Earth Mulberry Silk Pillow

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

Verdict is reader-supported. As an Amazon Associate we earn from qualifying purchases. Some links on this page are affiliate links — if you click through and buy, we may earn a small commission at no extra cost to you. Our ratings are sourced from independent publications, not sponsors.

The short answer

Cozy Earth Mulberry Silk Pillow comes out ahead by a clear margin (4.4 vs 4.0). Cozy Earth Mulberry Silk Pillow is best for: Hot sleepers who prioritize a luxury feel over maximum cooling tech — buyers with feather allergies looking for a down alternative, sleepers in temperate climates where mild cooling is enough, anyone who values silk and bamboo as materials in their own right. Read the strengths below before deciding.

Ranked #5 in Best Cooling Pillows

Coop Sleep Goods Cool+ Adjustable Pillow

4.0

1 source$149as of Nov 5

For hot sleepers, the Coop Cool+ is the clearest upgrade Coop has shipped in years: a phase-change gel cover over 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. Choose it when you want the adjustability of shredded fill alongside contact-cooling.

Strengths

— 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
— GREENGUARD Gold and CertiPUR-US certified with a 100-night sleep trial and 5-year warranty

Watch-outs

— Heavy at over 4 lb queen — re-fluffing the shredded fill takes more effort than a down alternative

$149 · Check Price on Amazon Full review →

Higher ratedRanked #3 in Best Cooling Pillows

Cozy Earth Mulberry Silk Pillow

4.4

2 sources$198as of Oct 17

The Cozy Earth Silk Pillow is the luxury, naturally-cooling option in this lineup: 100% mulberry silk fill inside a premium bamboo viscose shell, with a 10-year warranty Cozy Earth backs against any defect. Cooling here is passive and gentle rather than aggressive, yet reviewers consistently rate it the most comfortable pillow they've ever tested. It suits hot sleepers who want a luxury bedding feel more than engineered cooling tech.

Strengths

— 100% long-strand mulberry silk fill — naturally breathable, hypoallergenic, and moisture-wicking
— Premium bamboo viscose shell stays cool to the touch and doesn't trap body heat
— 100-night sleep trial and 10-year warranty — generous for a luxury pillow

Watch-outs

— Most expensive pillow on this list — $330 MSRP, often discounted to $200-264 on sale
— Cannot be machine-washed — silk fill is spot-clean and air-dry only

$198 · Buy at cozyearth.com Full review →

How they stack up

Coop Sleep Goods Cool+ Adjustable Pillow

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.

Cozy Earth Mulberry Silk Pillow

The luxury counterpoint to everything else in this lineup. Where the Coop Cool+, Slumber Cloud UltraCool, and Purple Harmony are engineering-led approaches to cooling, the Cozy Earth is a materials-led approach — silk and bamboo just happen to be naturally cool. Competes with the Saatva Latex Pillow on feel — both pillows aim for a plush, premium hand. Skip if you want pure cooling performance; pick if you want cooling alongside a luxury sleep experience.

Specs side-by-side

Spec	Coop Sleep Goods Cool+ Adjustable Pillow	Cozy Earth Mulberry Silk Pillow
Material	Gel-infused memory foam + microfiber	100% long-strand mulberry silk + bamboo viscose
Fill	Plus-shaped shredded foam (adjustable)	100% AAA-grade mulberry silk floss
Cover	Cool-touch knit with PCM layer	100% premium bamboo viscose shell
Cooling Tech	Phase-change gel + Q-max 0.38 cool-touch surface	Passive — silk breathability + bamboo cool-touch
Loft Adjustable	Yes — add/remove fill via zipper	No — single fixed loft
Sizes	Queen 17x27, King 17x33	Standard, King
Certifications	CertiPUR-US, GREENGUARD Gold	OEKO-TEX certified
Trial Period	100 nights	100 nights
Warranty	5 years	10 years
Care	Machine wash cover cold, tumble dry low; spot clean foam	Spot clean, air dry only
Loft Options	None — fully adjustable (add/remove fill)	Single loft, ~5-6 inch

← See the full ranking of best cooling pillows