Founder Pre-Order · 500 Units Only
No Leaks.
No Noise.
No Subscription.
The world's first open hydro-thermal sleep system — built to last, near-silent, no subscription. Smart temperature scheduling. Yours forever.
$1,499
$1,799
Founder · Save $300
Reserve with only $19 refundable deposit today · Balance due at shipping (Q4 2026)
Size
Zone Configuration
🔒 Reserve with $19 today — fully refundable anytime. The remaining $1,480 is only collected when your unit ships (Q4 2026).
✓100% Refundable deposit, cancel anytime
✓Free worldwide shipping included
✓2-Year full warranty
✓Ships Q4 2026, Founder units first
Whisper-Silent·
Wide temperature range·
$0/mo No Subscription·
Even Coverage·
Low Leak Risk·
Open API·
Advanced thermal materials·
Ultra-thin profile·
Dual-Zone·
2-Year Warranty·
Whisper-Silent·
Wide temperature range·
$0/mo No Subscription·
Even Coverage·
Low Leak Risk·
Open API·
Advanced thermal materials·
Ultra-thin profile·
Dual-Zone·
2-Year Warranty·
The Technology
Open hydro-thermal cooling.
Built from first principles.
01 · Core
TEC Thermal Engine
Thermoelectric modules generate precise cooling or warming. Thermal energy transfers into an open water network — just top up the tank periodically. No pressurized loops, no high-pressure joints.
Precision cooling and heating
02 · Distribution
Open Thermal Network
Internal water channels distribute temperature across every inch of your sleep surface. Even coverage across every inch. No hot spots. No cold spots.
Even coverage across every inch
03 · Intelligence
Sleep Science Scheduling
Set your sleep schedule once. The system follows your body's natural temperature rhythm — cooler at sleep onset, stable through deep sleep, warming toward wake. Open API for Oura, Apple Health, Google Fit.
App launching Q1 2027
Why We Exist
Everything Eight Sleep
got wrong, we fixed.
✦ Recommended
Sleepfrore
✓Low leak risk. Open water system — no pressurized loops, no exposed joints, no failure points.
✓No subscription. All smart features work forever — no monthly gate.
✓Open API. Oura Ring, Apple Watch, Home Assistant — your data, your control.
✓near-silent. Near-silent operation. Engineered for sleep.
✓$1,499 one-time. 40% less than Eight Sleep. No hidden costs ever.
✗ Eight Sleep & Water-Cooled Systems
✗Open water loop with external tubing. Joints and connectors fail — leaks destroy $3,000 mattresses.
✗$17–33/month subscription. Stop paying → core features locked forever.
✗Closed ecosystem. Can't export data. No third-party integrations.
✗Water pump noise disrupts sleep during active cooling cycles.
✗$2,499 hardware + $288/year + voided warranty if you cancel.
"We baby this thing because we know it's a giant piece of sh*t just waiting to drown me in my sleep." r/EightSleep · 192 upvotes
What You Get
Every detail.
No compromises.
near-silent
Whisper Silent
Quieter than a whisper. You'll forget it's on. Near-silent vs. 55–70dB for water-pump systems.
Whisper = 30dB
Zero
Low Leak Risk
Low-pressure water system. No exposed joints. No failure points.
Open system
55–110°F
Cool & Warm
Precision temperature control in both directions. Set your perfect sleep temperature and let it hold all night.
Cool summer · Warm winter
even temperature
Uniform Coverage
Internal water channels deliver even temperature across your entire sleep surface.
Edge to edge
2×
Dual-Zone
Each side of the bed independently controlled. Perfect for couples with different sleep temperature preferences.
His & hers
$0
No Maintenance
No filters to replace. No subscription required. No hidden costs. Ever. Own it forever.
$0/month · Forever
Sleep Science Scheduling
Set it once.
Sleep better
every night.
Set your sleep schedule once. The system follows your body's natural temperature rhythm — cooler at sleep onset, stable through deep sleep, warming toward wake.
No biometric tracking required · No subscription · App launching Q1 2027
Questions
Everything you
need to know.
Estimated Q4 2026. Founder pre-orders ship first. You'll receive updates every 30 days — no radio silence.
100%. Cancel anytime before shipment, no questions asked. Full refund within 5 business days.
Systems like Eight Sleep use an open water loop with external tubing, joints, and connectors — every one a potential failure point. Sleepfrore uses an open water system: just top up the tank periodically. No pressurized loops, no exposed connections. Plus: no subscription, near-silent, and ultra-thin thin.
Yes. The Sleepfrore Sleep System sits on top of any mattress like a mattress topper. Available in Twin XL, Full, Queen, King, and Cal King.
Yes. Dual-zone control lets each side of the bed be set independently — perfect for couples with different sleep temperature preferences.
2-year full warranty. Open water system design means dramatically fewer failure points than pressurized water-loop systems.
Limited to 500 Founder Units
The last cooling system
you'll ever need.
500 founder units. $1,499 locked forever.
$19 secures your spot today.
Fully refundable · Balance collected at shipping (Q4 2026) · Free shipping worldwide
Not ready to commit? Join the free waitlist →