⏰ Limited quantity for summer | Ships in 24h | 30-night guarantee
Sleep through summer without the sweat
COOLFLOW™ BEST FOR SUMMERS

Sleep through summer without the sweat.

The cooling blanket trusted by 12,000+ Americans. Stay cool all night, wake refreshed—without turning your bedroom into a freezer.

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★★★★★ 4.9 2,847 verified reviews
⚡ Summer Availability Alert
We're 85% sold out this month. Order this week to guarantee August delivery before the heat spike.
0.40
Qmax Rating
2.6x faster heat transfer than cotton. The science that proves cooling.
100+
Washes
Cooling performance stays consistent. Gel blankets degrade. This doesn't.
47
Sleep Studies
Featured in peer-reviewed journals. Recommended by sleep specialists.
Why other blankets fail

Material science matters more than marketing.

Qmax is the lab standard for thermal conductivity. Higher score means faster heat transfer from your body. Here's how RELIVA® CoolFlow™ compares to what you've probably already tried.

Material Qmax Rating What It Is Real-World Effect
❄️
RELIVA® CoolFlow™
0.40
High-conductivity polyamide
✓ Instantly cold to touch. ✓ Stays cool after 100+ washes. ✓ Durable science.
🌿
Bamboo Blanket
Comfy Sleepers, Rest.com, others
0.15
Rayon-based (poor conductor)
✕ Takes minutes to feel cool. ✕ Retains heat in summer. ✕ Heavy, absorbs sweat.
💧
Gel-Infused Coating
Amazon brands (most fail)
0.14
Cooling gel degrades fast
✕ Feels cold for 10 mins. ✕ Then traps heat like cotton. ✕ Coating gone by wash 15.
🧵
Regular Cotton
Standard bedding
0.11
Insulates instead of conducts
✕ Absorbs sweat. ✕ Heats up fast. ✕ The worst for hot sleepers.
Why competitors don't publish Qmax scores:
Because it's the ONE number that proves cooling claims. Gel-infused blankets (the $100+ "premium" ones) score 0.12–0.18. That's worse than cotton once the coating wears off. Bamboo marketing sounds premium but it's actually 2.6x slower at releasing heat than RELIVA® CoolFlow™. The science doesn't lie.
The bed microclimate trap

Why your AC at 62°F still leaves you soaked.

1

Your room is cold. Your blanket isn't.

Regular blankets insulate instead of releasing heat. Your body heat gets trapped in a microclimate between your skin and the fabric.

2

Core temp rises. Sleep breaks at 2–3 AM.

The thermostat doesn't matter if heat is building under your blanket. Your nervous system triggers a wake-up.

3

You sweat. Bedding absorbs moisture.

You're now lying in a damp, heat-trapping cocoon. You kick it off, get cold, can't sleep.

4

CoolFlow releases heat continuously.

High-conductivity fibers pull heat and moisture away. Your core stays at optimal sleep temp. Deep, uninterrupted sleep.

Temperature under your blanket through the night
Cotton blanket
98.8°
98.8°F (waking, drenched)
Bamboo blanket
98.2°
98.2°F (still uncomfortable)
RELIVA CoolFlow
97.1°
97.1°F (sleeping through)
That 1.7°F difference = the difference between waking at 2 AM drenched and sleeping 7-8 uninterrupted hours.
What waking up dry actually feels like

Real people, real relief.

Sarah M
Sarah M.
✓ Hot sleeper • 4 weeks
"I'm finally sleeping through the night"
"I've struggled with night sweats for years. Tried fans, AC, expensive mattresses. First night, I didn't wake up once. My sheets aren't soaked. I'm buying one for my kids."
James T
James T.
✓ Couple problem • 2 weeks
"My partner finally stopped complaining"
"She was ready to move to the couch. This blanket means I get to sleep beside her again. It stays cool without making her freeze. I don't know the science, but it works."
Michelle D
Michelle D.
✓ Skeptic • 1 month
"I woke up dry. Like actually dry."
"I've bought every 'cooling' blanket on Amazon. They feel cold for 10 minutes then trap heat. This one actually stayed cool all night. I'm a believer."

Still worried it won't work for you?

30 nights to prove it works. Full refund if you're not sleeping drier and better. Zero risk.

Start sleeping dry →
Our story

Why we built RELIVA

Because better sleep shouldn't require sacrificing comfort or science.

We started RELIVA because our founder couldn't sleep.

Not because of a medical condition. Because ordinary blankets trap heat. He tried everything—fans, extreme AC, gel blankets, bamboo sheets. Nothing worked.

Then he discovered one metric that changed everything: Qmax thermal conductivity. A single material science number that proves whether fabric releases heat or traps it.

High-conductivity polyamide actually moves heat away from your body. It sounds simple because it is. But nobody was using it in sleep products because it doesn't have a fancy marketing story.

💡

We solve sleep problems, not invent features

Everything we build answers one question: does it help hot sleepers actually sleep?

🔬

Material science over marketing

We publish our Qmax scores. Competitors don't because theirs are worse.

✓

We stand behind what we sell

30-night guarantee. Full refund, no questions. We know it works.

RELIVA Team
Clinical Endorsement

Recommended by sleep medicine specialists.

Dr. James Morrison
MD, Sleep Medicine
Dr. James Morrison
"CoolFlow's approach to thermal regulation is exactly what sleep science recommends for hot sleepers."
Most cooling products fail because they rely on gel coatings that degrade after 10-15 washes, or heavy bamboo that traps heat. CoolFlow uses high-conductivity polyamide that actually moves heat away from the body. The Qmax 0.40 rating means it delivers the "cold side of the pillow" sensation instantly, which is critical for people with disrupted sleep. What I tell my patients: the best sleep aid is one that doesn't interrupt your sleep, and this blanket gets out of the way.
✓ Instant cooling No 30-minute ramp-up
✓ True breathability Doesn't trap heat
✓ Durable science Stays cool for years
✓ Safe for all No chemicals or coatings
Common questions answered

Still have questions?

How is this different from gel-infused blankets?
Gel coatings feel cold for the first 10 minutes, then degrade after 15 washes. RELIVA uses high-conductivity polyamide (Qmax 0.40) that stays cool indefinitely. No coating to wear off—the science is built into the fabric itself.
Will it work if my bedroom is already hot?
Yes. The problem isn't usually the room—it's heat trapped under ordinary blankets. CoolFlow releases that trapped heat and moisture, even in warm rooms. But for best results, keep your bedroom between 65–72°F.
What if I have a partner who runs cold?
This is why we designed RELIVA as a personal blanket layer. Your partner can use whatever they want. You get your cooling zone, they stay comfortable. No more thermostat wars.
How do I wash it?
Cold water, gentle cycle, dry on low heat. The Qmax rating holds for 100+ washes. Machine washing is fine—no special care needed.
What's your guarantee?
30 nights to sleep on it. If you don't wake up drier or sleep better, full refund. No questions asked. We're that confident in the science.