"Cooling" used to be a single vague claim printed on a comforter tag. This year, the more useful cooling comforters are disclosing exactly what's making them cool — a specific Q-max number, a named fiber technology, sometimes an expert reviewing the science behind it — instead of leaving buyers to take the word "cooling" at face value. Bedsure launched two different cooling comforters in 2026, SleepEase and CoolOxy 2.0, and they solve overheating in genuinely different ways, which makes them a useful case for understanding what to actually check before buying either category.
SleepEase: Built Around a Measured Q-Max Number
SleepEase carries a Q-max rating of 0.425[1][3]. Q-max measures how quickly a fabric pulls heat away from skin on first contact — anything above 0.2 is generally classified as producing a cooling sensation, so 0.425 sits well above that threshold[1]. That's the number to compare against other cooling products that also disclose a Q-max figure; a listing that skips the number entirely is asking you to trust a claim you can't actually verify against anything else.
The comforter combines Rudolf HYDROCOOL moisture-regulating fabric, a CASTOR fiber fill described as containing over 100,000 micro air pores, and a hollow spiral fiber structure meant to support airflow through the fill layer, all wrapped in a polyester shell backed with nylon-elastane[1]. Sleep neurologist Meredith Broderick reviewed the comforter and connected its design to how the body actually cools itself during sleep — bedding that traps heat can interfere with the core temperature drop tied to reaching deeper sleep stages, and she described SleepEase as feeling "crisp and cool" sustained through the night rather than only at first touch[1].
The same review is direct about limits: SleepEase isn't described as an "ice-cold" blanket, and its performance shifts depending on room temperature and humidity — it's positioned as working best in a moderately climate-controlled room, not as a substitute for air conditioning in a genuinely hot, humid space[1]. On durability, the fill held its loft without clumping after machine washing, and the shell showed no pilling after a standard dry cycle in the same testing[1].
CoolOxy 2.0: Built Around Airflow, Not Just Surface Feel
CoolOxy Comforter 2.0 launched around the same time but takes a different approach. Instead of leaning primarily on a cool-touch fabric, it uses zoned airflow channels to actively release trapped heat, a micro-perforated jacquard weave for ventilation, and a fill blend of roughly 31% TENCEL fiber combined with microfiber[5] — a construction the brand has said draws on ideas from performance sportswear rather than traditional bedding[2]. Where SleepEase is optimized for that immediate cool-to-the-touch moment, CoolOxy 2.0 is built more around sustained ventilation over a full night, which matters more for someone who overheats gradually rather than someone who runs hot from the moment they lie down.
Comparing the Two Directly
| SleepEase | CoolOxy 2.0 | |
| Main mechanism | High Q-max surface cooling + named fill fiber | Zoned airflow + micro-perforated weave |
| Q-max rating | 0.425[1] | Not disclosed in the same way |
| Fill | CASTOR fiber, hollow spiral structure[1] | ~31% TENCEL blended with microfiber[2] |
| Best suited for | Immediate cool-to-touch feel, sustained through the night in a controlled room | Gradual overheating, more ventilation-driven comfort |
| Independently reviewed by | Sleep neurologist Meredith Broderick[1] | Not covered in the same detail publicly |
Which One Actually Fits Your Situation
If you're someone who overheats the moment you get into bed and wants that instant cool-touch sensation, SleepEase's Q-max-driven design is closer to what you're describing. If your problem is more that you warm up gradually over the night and wake up sweaty by 3 a.m. rather than uncomfortable from the start, CoolOxy 2.0's airflow-first approach is arguably the better fit, since it's designed around continuous heat release rather than an initial cooling moment. Neither is a fix for a genuinely hot, humid room without air conditioning — both work as a supportive layer within a reasonably temperature-controlled bedroom, not a replacement for one.
Who Doesn't Need Either
Someone already sleeping comfortably in an air-conditioned room under a standard breathable comforter isn't likely to notice a dramatic difference switching to either of these — the added cooling technology is solving a real overheating problem, not improving comfort that's already fine. Cooling comforters make the most sense for hot sleepers, people in humid climates without strong AC, those dealing with night sweats, or couples sharing a bed with mismatched temperature preferences[1].
What to Check Before Buying Any Cooling Comforter
Given how differently these two products solve the same basic problem, it's worth checking three things on any cooling comforter listing before buying: whether it states an actual Q-max number rather than just the word "cooling," whether it names a specific fill or shell technology instead of a generic description, and whether there's any independent or expert testing behind the claim rather than only the brand's own copy. A listing that answers all three gives you something to actually compare — one that answers none of them is asking for trust without giving you a way to verify it[4].
Frequently Asked Questions
What Q-max rating does SleepEase have, and what does that number mean?
It's rated at 0.425; ratings above 0.2 are generally considered to produce a cooling sensation on contact, so 0.425 is meaningfully above that threshold.
What's the main difference between SleepEase and CoolOxy 2.0?
SleepEase focuses on immediate cool-touch feel through a high Q-max and named fill fiber, while CoolOxy 2.0 uses airflow channels and a TENCEL-blended fill for gradual, sustained ventilation.
Does SleepEase feel cold all night, or just when you first get in?
The reviewing sleep neurologist described it as feeling crisp and cool sustained through the night, not just at first contact, though this varies with room temperature and humidity.
Can a cooling comforter replace air conditioning in a hot room?
No. Both SleepEase and CoolOxy 2.0 are designed to work within a reasonably temperature-controlled room, not as a substitute for cooling a genuinely hot space.
Who should consider a cooling comforter in the first place?
Hot sleepers, people in humid climates, those with night sweats, and couples with mismatched temperature preferences are the clearest fits; someone already comfortable under a standard comforter likely won't notice much difference.
References
[1] Bedsure SleepEase Review: Sleep Expert Tested — Bedsure, https://bedsurehome.com/blogs/bedsure/bedsure-sleepease-cooling-comforter-review
[2] Shinebed International Showcases the Future of Comfort at Market Week 2026 — PR Newswire, https://www.prnewswire.com/news-releases/shinebed-international-showcases-the-future-of-comfort-at-market-week-2026-302729751.html
[3] Qmax Warm / Cool Touch Test — NC State University, https://textiles.ncsu.edu/tpacc/comfort-performance/qmax-warm-cool-touch-test/
[4] Best Cooling Comforters of 2026: Top Picks for Breathable Comfort — Sleep Foundation, https://www.sleepfoundation.org/best-bedding/best-cooling-comforter
[5] Best Comforters of 2026 — Sleep Foundation, https://www.sleepfoundation.org/best-bedding/best-comforter
[6] Q-max Test for Instant Cool Feeling — Boken Quality Evaluation Institute, https://www.boken.or.jp/find_tests/functionality/comfortability_heat/1229/
[7] Hot Sleeper Bedding Guide for Summer 2026 — Bedsure, https://bedsurehome.com/blogs/bedsure/the-hot-sleepers-complete-bedding-guide-for-summer-2026
