Designed for Hot Sleepers. Built for Ultimate Comfort.

Affordable, Effective, and Whisper-Quiet Cooling for Healthier Sleep

All-Night Cooling

All-Night Cooling

Stay cool, comfortable, all night.

Supports REM and Deep Sleep

Supports REM and Deep Sleep

Enhances rest for peak recovery.

Eliminate Body Sweat

Eliminate Body Sweat

Dry nights, better sleep guaranteed.

Works With Your Existing Setup

Works With Your Existing Setup

Compatible design, effortless integration.

Energy Efficient

Energy Efficient

Save energy without sacrificing comfort.

EMF Free

EMF Free

Sleep safely with zero worries.

Ultra-Quiet Operation

Ultra-Quiet Operation

Whisper-quiet for undisturbed rest.

No Maintenance Required

No Maintenance Required

Hassle-free sleep, zero upkeep needed.

All-Night Cooling

All-Night Cooling

Stay cool, comfortable, all night.

Supports REM and Deep Sleep

Supports REM and Deep Sleep

Enhances rest for peak recovery.

Eliminate Body Sweat

Eliminate Body Sweat

Dry nights, better sleep guaranteed.

Works With Your Existing Setup

Works With Your Existing Setup

Compatible design, effortless integration.

Energy Efficient

Energy Efficient

Save energy without sacrificing comfort.

EMF Free

EMF Free

Sleep safely with zero worries.

Ultra-Quiet Operation

Ultra-Quiet Operation

Whisper-quiet for undisturbed rest.

No Maintenance Required

No Maintenance Required

Hassle-free sleep, zero upkeep needed.

Active Water Circulation for Sweat-Free, Deep Sleep All Night Long.

Hot Sleepers, Meet Your Match

Experience the difference of active water cooling that draws heat away from your body, preventing night sweats and interruptions for deeper, restorative sleep.

With ultra-quiet operation and customizable temperature controls, get ready for your best night's sleep ever.

Affordable Sleep Tech, Finally

Forget complex, $3,000 mattress setups. The Flux Sleep provides the same cooling power, but for less than 1/10th of the price of the typical high-end system.

Plus, there are no recurring subscriptions, ever. Pay once, and enjoy for a lifetime.

Works With Any Bedroom Setup

Don’t replace your bed. Just upgrade it. The slim, flexible design effortlessly slides between your mattress and fitted sheet, instantly transforming your sleep without changing your setup.

King and Queen sizes come with two units, allowing you to independently control the temperature on each side.

Why Choose Flux Sleep?

Flux Sleep vs. The 'Other Guys'

Features
Flux Sleep
Other Guys
Starting Under $200
No Subscription Required
No EMFs
Energy Efficient
5-Minute Setup

Ultra Simple Setup

1. Unfold & Place Pad

Unfold the mattress pad and place it between your mattress and your sheets.

2. Fill Tank & Plug In

Fill the water tank with regular tap water and plug it in.

3. Sleep Cool Tonight!

Turn it on and enjoy a temperature-controlled bed within minutes.

Guaranteed Satisfaction With Flux Sleep

Helen K. | ⭐️⭐️⭐️⭐️⭐️

"I tried everything - melatonin, blackout curtains, white noise. But nothing helped me actually stay asleep. This was the first thing that made a real difference. It’s like my body finally got permission to relax."

Erika S. | ⭐️⭐️⭐️⭐️⭐️

"I used to dread going to bed because I knew I’d be up by 2 a.m. soaked in sweat. Now I sleep through the night and actually look forward to getting into bed. It’s like my bedroom finally matches the calm I want to feel."

James R. | ⭐️⭐️⭐️⭐️⭐️

“I wanted an cooling mattress topper but couldn’t justify dropping thousands. This gave me everything I wanted, with no app BS, no subscription. Just sleep that feels effortless. My only regret is not buying it sooner.

"Flux Sleep was rated as the best new cooling mattress pad of 2025"
Sarah Johnson
TechSmart

Meet Our Expert

With Over 25 Years of Experience

As a sleep expert with over 25 years studying thermoregulation and its impact on rest, I've evaluated countless cooling solutions (from fans to those high-end pods) and Flux Sleep stands out for its simplicity and effectiveness.

I've seen firsthand how overheating disrupts sleep cycles, reducing REM and deep sleep stages - essential for cognitive function, immune health, and daily energy. That's why I endorse Flux Sleep: it maintains optimal body temperature without noise or complexity, promoting uninterrupted, restorative sleep with more REM for better memory and learning, deeper slow-wave sleep for physical recovery, and waking up truly refreshed.

At a fraction of the cost of premium systems, it's a breakthrough making healthier sleep accessible to everyone.

Frequently Asked Questions

How loud is the Flux Sleep?

The Flux Sleep is extremely quiet - just 33 decibels when operating.

To give you an idea, 33 dB is roughly the sound of a soft whisper or a quiet library. It is significantly quieter than a standard bedside fan or a window AC unit. In a typical room, you’ll likely forget it’s even running.

How cold does the Flux Sleep get?

The Flux Sleep features two cooling modes designed to help you find your perfect sleep temperature:

  • Eco Mode: Ideal for all-night comfort, this mode lowers your bed temperature by -4°F.
  • Max Mode: Povides a deeper chill, dropping the temperature by -9°F.
Can I control each side of the bed independently?

Yes! Our Queen and King systems are designed for total "Dual-Zone" customization. Instead of one unit trying to please two people, we provide two dedicated cooling systems - one for each side of the bed.

Does the Flux Sleep require a subscription?

No. When you buy the Flux Sleep, you own it. We don’t believe in charging you a "monthly rent" to sleep in your own bed. There are no hidden fees, no locked features, and no memberships required. Every cooling benefit is available to you from day one, forever.

How is the Flux Sleep cooled?

The Flux Sleep uses active semiconductor refrigeration to chill water and circulate it through a network of micro-tubes inside the mattress pad.

Does the Flux Sleep need an app?

No app required! We designed the Flux Sleep to be "digital-detox" friendly. You can switch between Eco and Max modes directly on the unit with a simple button press. There’s no need to fumble with your phone, check for firmware updates, or deal with spotty Wi-Fi in the middle of the night.

Does the Flux Sleep require a new mattress?

No, you can keep the mattress you already love. The Flux Sleep is designed to be a universal "add-on" system. It features a thin, comfortable cooling pad that slides right on top of your current mattress. Simply place the pad under your fitted sheet, connect it to the control unit, and you’ve instantly upgraded your existing bed!

How often do I need to refill the water?

Not very often. Because the Flux Sleep operates as a semi-closed loop, evaporation is kept to an absolute minimum. In a standard bedroom environment, you will typically only need to "top off" the reservoir once every 4 to 8 weeks.

Is there a weight limit for the Flux Sleep?

No, there is no weight limit. Our cooling pad is engineered with durable, medical-grade silicone tubing that is designed to withstand the pressure of any body type without kinking or restricting water flow. Whether you sleep alone or share the bed with a partner (and the dog!), the Flux Sleep will continue to circulate water.

Where is Flux Sleep headquartered?

Flux Sleep is a USA-based company headquartered in Wyoming.

All units are shipped from our warehouse in Tulsa, Oklahoma.

Didn't Find Your Answer?

Don't hesitate to contact us!

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.