60-NIGHT COLD-SLEEP GUARANTEE ✦ 2-YEAR WARRANTY ✦ TRUE SEMICONDUCTOR CHILLING ✦ COOLS AND WARMS ✦ 60-NIGHT COLD-SLEEP GUARANTEE ✦ 2-YEAR WARRANTY ✦ TRUE SEMICONDUCTOR CHILLING ✦ COOLS AND WARMS ✦
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★★★★★ 4.6 · 1,204 verified sleepers
Active Bed Cooling · The Frost Line
FYROST Glacier Pro™
Not a fan. A refrigerator for your bed.
$249.00$449.00Save 44%
Delivered in 5–10 business days.
- True semiconductor chilling — circulating water pulled 5–6°C below room temperature, even on humid nights
- Flip the mode and the same loop gently warms the bed in winter (up to 25°C water)
- Grey knit sleep surface over silent TPU water channels · pad 90 × 140 cm
- Toaster-sized bedside unit (24.6 × 19 × 11.5 cm) with leather strap, remote + 1–10 h timers
Kit: Complete Set
What's the difference?
Complete Set
Everything: the semiconductor chiller unit, 90 × 140 cm knit sleep pad, remote, insulated hose and power adapter. One set cools one sleeper.
Extra Pad
A second 90 × 140 cm sleep pad only — keep one in the wash, or move the chiller between rooms.
Most popularComplete Set
✓ Fast Shipping✓ 60-Night Trial✓ 2-Year Warranty
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What actively chilled sleep does to a hot sleeper
Semiconductor water loop · measured on the pad
−6°C
Water below room temperature
60 W
Draw — about 1/20th of an AC
~$0.06
Of electricity per full night
Figures from the manufacturer's bench test at 28°C ambient. Cooling felt on the pad varies with room conditions. Glacier Pro is a comfort device, not a medical treatment.
The hot sleeper problem
Fans move hot air around. AC freezes the whole house. Neither cools the bed.
Your mattress traps eight hours of body heat a night, and evaporative “bed coolers” quit the moment the air turns humid. Glacier Pro refrigerates the water itself with a solid-state semiconductor core — then circulates it silently through the pad under you. The bed gets cold because the water is cold. Room, weather and humidity don't get a vote.
One loop · Six jobs
Built for every night you'd rather sleep cold
01
Real Refrigeration
A semiconductor core actively chills the water 5–6°C below your room — not a wet-curtain fan that fades in humidity.
02
Winter Mode
The same loop gently warms to 25°C water — one device, twelve months of use.
03
All-Night Timers
1 / 2 / 4 / 6 / 8 / 10 h sessions — it switches itself off after you're asleep.
04
Actually Silent
A whisper pump and low-speed fan. Quieter than your fridge two rooms away.
05
Six-Cent Nights
60 W total draw — about half a kilowatt-hour over a full night. Your AC bill can relax.
06
Grab and Go
Toaster-sized with a leather carry strap. Bedroom tonight, guest room tomorrow.
How it works
Two minutes. Four steps.
STEP 01
Fill it
480 ml of tap water into the sealed tank. Once — not nightly.
STEP 02
Lay the pad
The 90 × 140 cm knit pad lies flat on your side of the mattress, under your fitted sheet or on top.
STEP 03
Pick a temperature
Touch panel or remote from bed. Cool for July, warm for January.
STEP 04
Sleep on it
The water loop holds your setting all night and the timer shuts it down.
Why Glacier Pro
Actively chilled sleep — without the smart-bed bill
| FYROST Glacier Pro | Eight Sleep Pod | Sleepme ChiliPad | Bed fans | |
|---|---|---|---|---|
| Price | $249.00 | $2,199+ | $1,199 | $99 |
| Actively refrigerated water | Yes | Yes | Yes | No — blows room air |
| Works in humid rooms | Yes | Yes | Yes | Barely |
| Warms in winter too | Yes | Yes | Extra cost | No |
| Monthly subscription | None | $17–33/mo | None | None |
| Power draw | 60 W | 400 W+ | 300 W+ | 60 W |
| Warranty | 2 years | 1 year* | 1 year | 90 days |
1,204 verified sleepers
The side of the bed everyone fights over now
★★★★★
"We have central air and I still ran hot every night. This actually makes the bed cold — like hotel-pillow-flip cold, but it lasts until morning."
Dana K. · Verified Buyer
★★★★★
"Lives in Houston, so evaporative anything is useless here. This one doesn't care about humidity. Water gets properly cold and the pad stays that way."
Marcus T. · Verified Buyer
★★★★★
"Bought it for hot flashes and it's been the single best purchase of the year. The timer means it shuts off at 3am after the worst window passes."
Elaine W. · Verified Buyer
Good to know
Questions, answered
How cold does it actually get?
The semiconductor core pulls the circulating water 5–6°C below your room temperature — at a 24°C bedroom that's water around 18°C flowing under you all night, which feels distinctly, continuously cool against skin. It's refrigeration, not evaporation, so humidity doesn't weaken it.
Does it really heat too?
Yes — switch modes and the loop warms the water up to 25°C for gentle radiant warmth in winter. It replaces an electric blanket without the dry heat.
Will the pad fit my bed?
The pad is 90 × 140 cm — it covers one sleeper's side of any bed from a single to a king, positioned under your torso and legs. Use it under a fitted sheet or lie on it directly. Need both sides cold? Add a second Complete Set.
Is it noisy?
No. It's a small water pump plus a low-speed fan — a soft hum quieter than a white-noise machine. Light sleepers run it all night.
What does it cost to run?
60 watts. A full 8-hour night uses about half a kilowatt-hour — roughly six cents. Cooling your bed instead of your whole bedroom is the entire point.
How long does shipping take?
Orders are processed within 1–2 business days and delivered in 5–10 business days with tracking emailed the moment your Glacier Pro leaves the warehouse.
What if it's not for me?
Sleep on it for up to 60 nights. If you're not sleeping colder and deeper, send it back for a full refund — no restocking fees. Every Glacier Pro carries a 2-year warranty.
60
NIGHTS
The FYROST promise
Try it 60 nights. Love it, or your money back.
Sleep on it through a full heat wave — sixty nights. If your bed isn't colder, your sleep deeper and your AC bill smaller, email us for a full refund. No restocking fees, no awkward questions.
FastUS shipping
2-Yearwarranty included
Secureencrypted checkout
Realhuman support
Everything you need — in one box
Semiconductor Chiller Unit24.6 × 19 × 11.5 cm · leather strap
Knit Sleep Pad90 × 140 cm · TPU water channels
Remote + Touch ControlsTimers 1–10 h
Insulated Hose + Power Adapter
Fill it, lay the pad, pick a number — your first cold night is tonight.
Your bed. Six degrees colder. Tonight.
Join 1,200+ hot sleepers who stopped negotiating with fans.
60-night trial · 2-year warranty