The Best Bed Cooling Systems And Mattress Pads

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bedjet 3 and remote control

It’s not easy to fall asleep when sweat is rolling off you in the fabric sauna your bedroom has morphed into.

It’s sometimes overlooked, but keeping your bedroom and body at a comfortable temperature is a key ingredient for good sleep. As a hot sleeper myself, I’ve tried many cooling products over the years, with varying degrees of success.

The good news is that whether you’re kept awake by warm weather or just tend to sleep hot, it is possible to keep your bed and body feeling cool enough to sleep at night – even without air conditioning in your bedroom.

In this article, I’ll be sharing the bed cooling systems, fans, and cooling mattress pads that I’ve had the best results with in recent years.

If you just want a cooler surface to fall asleep on, a more breathable mattress pad or topper might be all you need. But if you’d like powerful or targeted cooling that lasts all night, one of the active bed cooling systems might be a better choice.

Please note that all the photos are my own, but the manufacturers may make changes in the future. You’ll also see different bedrooms in the photos because I moved house.


At a glance

The bed cooling systems and pads in detail

Quick overviews

Eight Sleep Pod 3 Cover

Price: $$$$

man changing the water of the Eight Sleep Pod 3 Cover

The Eight Sleep Pod 3 is an intelligent bed cooling system that reliably combats the buildup of your body heat by creating a consistently cool surface to sleep on all night long. My partner and I are still using ours after ten months, and have loved the flexibility of simultaneously having cooling on one side of the bed and heating on the other.

The hub cools (or warms) water that flows through channels in a robust mattress pad. You can use the app to set temperatures of 55° – 110° Fahrenheit (13° – 44° Celsius) for three main stages of the night and a thermal alarm. The intelligent autopilot system then uses factors like your current sleep stage, health metrics (which you can see on the app), and room temperature to make subtle adjustments during the night to keep you comfortable. Just keep in mind that it makes a fan sound, is quite expensive, and requires an ongoing membership fee to access all the features.

BedJet 3

Price: $$$

bedjet 3 and remote control

The BedJet 3 is a good choice if you’d like a programmable bed cooling system that cools with air rather than water (and doesn’t require a subscription fee). It works with a forced air system that pumps air either inside a boxed cloud sheet or directly under your covers if you prefer. It has excellent fan speed and temperature controls, with a good range of 66° – 104° Fahrenheit (18.9° – 40° Celsius).

It’s fully programmable, with multiple timers that let you set the fan speed and temperature at different points in the night. There’s also the option of dual zones if you and your partner have different temperature preferences. The main downside may be the fan sound for some people, which is louder than the Eight Sleep.

Slumber Cloud Performance Mattress Pad

Price: $$$

Slumber Cloud Performance Mattress Pad and comforter

The Slumber Cloud mattress pad is designed to absorb your body heat and wick away moisture. Using the temperature regulating ‘Outlast’ material that was originally designed for NASA, it’s a good option if you just want a fabric mattress pad that feels cooler rather than one you need to plug in. Just be aware that it has its limitations – if you stay in one position all night, your body heat will eventually win the battle. It’s still a good choice though as the material will feel cool for longer than most standard mattress pads.

Snooz Breez

Price: $$$

Snooz Breez on a nightstand and a man in bed

The Snooz Breez is a smart fan that can be programmed to turn on and off when your bedroom reaches certain temperatures. It has 10 speed settings, with the highest being significantly more powerful than basic room fans. It also has a second fan inside that can be used to create a relaxing fan sound without the cool airflow in the winter.

The app will let you program daily auto-on schedules and auto-off timers if you don’t want it blowing air all night. It is noisier than both the BedJet 3 and Eight Sleep, and quite pricey for a fan. But the modern design and flexible features make it a great fan for the bedroom.

Comparison tables

Table 1: Ratings

In table 1 below, you can see how I rate the bed cooling systems and pad out of 10 in key performance areas: cooling effectiveness, setup and maintenance, comfort, and durability.

The cooling effectiveness is based on two points: how well they cooled me on hotter nights, and how long I felt cool for after initially getting into bed. Those with active cooling naturally score higher because they cope better with the heat buildup from my body.

For set up and maintenance, the pad is quick to install and doesn’t require much maintenance beyond a wash or spot clean. The BedJet 3 and Eight Sleep Pod 3 Cover require more effort to install as they come with separate parts. Both need some periodic maintenance, which is quick and easy to do. The Breez was very straightforward, with no maintenance other than dusting.

The comfort is based on two points: how much they alter the feel of your mattress, and how they feel to lie on in different sleeping positions, based on my preference for a medium-firmness sleep surface.

The durability is based on how long I’ve had them without any faults occurring or flattening under my weight over time.

The blue links will take you to the company websites.

Setup &
Eight Sleep
Pod 3 Cover
BedJet 397109
Snooz Breez891010

Table 2: Key features

In table 2 below, you can see which ones tick some of the key boxes I look out for when I test bed cooling systems and mattress pads.

Note that only the Eight Sleep and BedJet 3 have a temperature range because the other two can’t be programmed to create a specific temperature.

The Eight Sleep, BedJet 3, and Breez do make some noise because they have fans. The Eight Sleep is fairly quiet unless you have it on very low or high temperature settings, and even then the fan is quieter than the Bedjet 3 or Breez.

Active or
Eight Sleep
Pod 3 Cover
Active55°–110° F
13° – 44° C
BedJet 3 Active66°-104° F
18.9° – 40° C
BreezActiveRoom temp
sensing on/off

The bed cooling systems and pads in detail

1. Eight Sleep Pod 3 Cover

The best bed cooling system, with a water-cooled pad and intelligent features to keep you cool (or warm when needed).

man changing the water in the Eight Sleep Pod 3 Cover

In the photo above, I’m demonstrating the process of adding water to the hub of the Eight Sleep Pod 3 Cover, which I’ve only needed to do twice in ten months. Note how the pad completely encases my mattress, but I also put my own mattress protector and bedsheet over it to sleep.

The Eight Sleep Pod 3 Cover is the most advanced and effective bed cooling system I’ve used so far. My partner and I have slept on it for nearly a year now, and have absolutely loved the way it gives us independent control of the temperature on our own side of the bed.

What’s been particularly effective for us is that I can have cooling on my side at the same time as she has heating on her side. And you only need the one hub unit to do that, unlike the BedJet 3 which needs two units if you want dual zones.

Essentially, there are three core parts to it: a mattress pad containing a grid of water tubes and sleep tracking sensors that goes over your existing mattress, the hub, and a smartphone app to control it.

The primary function of the hub is to regulate the temperature of the mattress pad by heating or cooling the water than flows through it, as well as monitoring the temperature changes of the pad and bedroom during the night. It also processes your sleep tracking and health metrics data, which is used by the autopilot system and available for you to see on the app too.

With the app, you can set the temperature for three main stages of the night, as well as a thermal alarm if you want one. The temperature range is 13° – 44°C / 55° – 110°F, which we’ve both found to be plenty cool or warm enough for our preferences. For simplicity’s sake, you can also just use settings from -10 to +10 rather than temperatures, which is what I’ve gotten used to now.

In the photo below, you can see the user-friendly app of the Eight Sleep. I usually set it to be quite cool to fall asleep and then warm to wake up.

App screen of the Eight Sleep Pod Cover 3 showing the cooling function

After you set your initial temperature preferences, you can also turn on the intelligent autopilot feature if you like. That will make adjustments during the night based on factors like your current sleep stage and room temperature. I’ve found it’s a bit of a mystery as to why it makes those changes, but the concept is interesting as it’s supposed to keep you at the best temperature for you in each sleep stage.

A key point to bear in mind is that you’ll need to find some space next to your bed for the hub as it’s taller than it is deep or wide. I tried keeping mine between the bed and nightstand, but ended up putting it behind the nightstand instead.

Eight Sleep Hub next to bed

Another minor criticism is that the fan in the hub does make some noise when it’s on higher settings or making significant temperature changes. For most of the night, the fan runs very quietly though. Since I sleep with earplugs or headphones every night, I don’t hear anything at all from it.

For me personally, the key benefit of the Eight Sleep Pod 3 Cover is that it has completely eliminated the issue of warm areas naturally building up under my body when I lie in bed. Since we installed it, I sleep much better in hot weather, even without air conditioning.

So if you’re someone who struggles with heat (or cold) in bed and you have the budget for it, I highly recommend giving the Eight Sleep Pod 3 Cover a try. It’s a superb bed cooling system that has the potential to significantly improve the way temperature affects your sleep at night. All the sleep tracking and health metrics data is an added bonus in my opinion, but could also be very useful for people who’d like to see that data without needing a wearable in bed.

Warranty / trial period

You can return the Eight Sleep Pod 3 Cover if you’re not happy with it within 30 days for a full refund. You have the option of a two or five year warranty (more below).


The biggest downside of the Eight Sleep Pod Cover 3 for many people is likely to be the price and membership fee.

The exact cost depends on the bed size. For example, the king size currently costs £2,245 in the UK, and $2,395 in the US.

However, you also need to choose one of two membership plans. The standard is £14 / $15 per month and comes with a two year warranty. The enhanced is £14 / $24 per month if you want the five year warranty. The company says this plan enables continuous improvements and updates, and I did see that snoring detection was added as a new feature a few months ago.

The issue is that if you cancel the plan after a year or don’t renew it when it runs out, you will only have the option to set a single temperature for the whole night on each side of the bed. All of the smart features and tracking will be unavailable. So getting the Eight Sleep involves some commitment to paying the membership in the future and generally being okay with subscription models, which is of course a personal choice.

Take a look at my full written and video Eight Sleep Pod 3 Cover review to find out more.


  • Active cooling and/or warming all night.
  • Excellent temperature range.
  • Good app interface.
  • Single or dual zones.
  • Robust design.
  • Sleep and health tracking.
  • Vibrating and/or temperature alarm function.


  • Makes a fan sound.
  • Requires space next to the bed for the base unit.
  • High price and membership fee.
  • The vibrating alarm can still be heard on the other side of the bed (but it’s better than a loud alarm tone).
  • Only app controlled.

2. BedJet 3 Climate Comfort

The most effective fan-based bed cooling system, giving you control over the fan speed and temperature.

man demonstrating the BedJet 3

In the photo above, I’ve placed the base unit of the BedJet 3 next to the bed, and I’m demonstrating how the air flows from the tube into the cloud sheet so you have cool air over your whole body.

The Bedjet 3 is my top pick if you’d prefer a bed cooling system that works with cool air rather than water. It has a sleek design and provides effective, fast, and targeted cooling all night long. I used mine for several years before giving it to a friend when I moved country, and it was a huge help in the warm summer months.

It’s designed to be compatible with any bed size and mattress, and I found it was easy to install. You can choose to have cool air blowing gently over your body, or inside a boxed top sheet. So it will cool both you and your bedding, helping wick away the heat which gets trapped under your covers.

If you sleep with a partner, you can either share the cool air or keep it to just one side. There’s also the option of a dual-zone version for independent temperature control. With the double setup, you’ll get two remote controls so you and your partner can control the temperature on your side. There’s also an app if you’d rather control it with your smartphone.

The remote control has a color screen, and you can use it to adjust a wide range of settings, such as the temperature, fan speed, and auto-off timers. You can also program it to change temperatures automatically during the night. One of my favorite things about the BedJet 3 is just how much flexibility it gives you to adjust the temperature, air speed, and direction of the airflow.

You can also use the BedJet 3 as a heating system in colder weather. I found it to be more effective and energy efficient than heated bedding, and it also heats your bed much quicker. If you have dual zones, you could even have cooling on one side of the bed and heating on the other – if you and your partner have very different temperature preferences.

One downside to consider is that you need to keep the base unit somewhere. I could tuck it under my bed as you only need a clearance of six inches. If you don’t have that, you’ll need to keep it next to the bed instead. At least you can get it under some bed frames though, compared to the Eight Sleep Pod 3 Cover which is unlikely to fit under most beds.

In the photo below, I tucked the BedJet 3 away under the bed, which is more convenient if you have six inches of clearance for it. There’s no cloud sheet in that photo, so the air is targeted toward your feet.

bedjet 3 set up in a bedroom

Another potential issue is that the fan does make some noise, which is fine if you like fan sounds. It’s quite a soft hum on low to medium speed settings and pleasant to have in the background.

But if you need complete silence to sleep, the noise on the higher speed settings might be too much. Personally, I rarely used it on the highest speed settings anyway, as it’s effective on gentler settings. Note that it is louder than the Eight Sleep Pod Cover 3 hub.

Overall, if you’d like an active cooling system that will reliably keep you cool and comfortable throughout the entire night, the BedJet 3 is an excellent choice.

Warranty / trial period

It comes with a 60 day trial period. They have an extended two year manufacturer’s warranty and will fix or replace any parts if needed.


The BedJet 3 starts at £469 in the UK, or $599 in the US, for a single unit on the company’s website. If you want two units with the cloud sheet, the queen size is £1029 / $1329 and the king is £1049 / $1349.

They regularly have sale prices though, which are typically considerably lower than those starting prices, so it’s worth keeping an eye out for seasonal sales.

If you sleep alone or share your bed, and one of you is fine with the ambient room temperature, you can save money and just get the single unit to adjust the temperature on one side.

Take a look at my full BedJet 3 review to find out more.


  • Active cooling all night.
  • Wide temperature range.
  • Dual zones if needed.
  • Cools or heats.
  • Physical remote control and app.
  • Works with any mattress.


  • Makes a fan sound.
  • Need space under or next to the bed for the base unit.
  • Expensive if you want dual zones.

3. Slumber Cloud Performance Mattress Pad

A mattress pad that helps dissipate body heat and feels breathable to sleep on. 

Slumber Cloud Performance Mattress Pad and comforter

In the photo above, you can see the SlumberCloud mattress pad set up on my bed. On top is the comforter, which I also made good use of for several summers as it’s very lightweight and breathable.

The Performance cooling mattress pad by Slumber Cloud is designed to keep you comfortable during the night by absorbing the body heat that builds up between you and the bed.

It works thanks to some clever technology that was originally designed for NASA. The pad uses a special fabric called Outlast, which is made from thousands of tiny beads called ‘Thermocules’. The beads absorb your body heat, changing from a solid to gel as they do.

Outlast, the company that creates the cooling material, describes the effect like an ice cube in a drink. The ice melts as it absorbs the heat of the drink, keeping it cool for longer. Similarly, the thermocules turn to gel as they take in your heat, helping you stay cool for longer. If you’re interested, you can learn all about the way it works on the website

The Performance is the latest of four cooling mattress pads made by Slumber Cloud. The main improvement in this one is that the outlast material is now paired with Tencel Lyocell for better moisture wicking in addition to the heat absorption.

With the exception of the Eight Sleep Pod 3 Cover, I found it works really well compared to other cooling pads I’ve tried. It felt significantly more breathable than a normal mattress, topper, or pad. And it helped me feel more comfortable during some unbearably warm summer nights.

The main downside is that it’s not an active cooling system and it can’t change the actual room temperature. What it will do, however, is stop you from feeling like you’re lying on top of a radiator.

Another point to keep in mind is that it’s not as thick as many toppers as it’s only a pad, so it won’t provide a significant amount of extra softness. Perhaps that’s a good thing though if you’re already happy with the level of support your bed currently provides.

For me, it’s the best cooling solution in the form of bedding that you don’t need to plug in to work. The BedJet 3 will keep a larger surface area of your body cool with its air stream and the Eight Sleep will actually cool your sleeping surface. But the Slumber Cloud mattress pad is a good option if you don’t want to spend big on expensive tech and just want a cooler fabric to lie on.

Warranty / trial period

Slumber Cloud offers a 60 day trial period, so you can test it out and send it back if you don’t like it. They have a 180 day manufacturer’s defects warranty too, which allows plenty of time to discover any defects.


The pad is available in seven sizes, and the price varies accordingly. On the company’s website, they range from $239 for the full size up to $269 for the king size in the US. They ship to select APO and US Territories and Canada, but not internationally beyond there currently.

Find out more in my full Slumber Cloud cooling pad review.


  • Outlast material helps wick body heat.
  • Cooler fabric than standard bedding.
  • Well constructed and robust.
  • Reasonable price.


  • No active cooling.
  • Doesn’t add much padding.

4. Snooz Breez Smart Fan

A 2-in-1 bedroom fan and white noise machine with 10 air speed settings.

snoop breez on a nightstand and a man in bed

In the photo above, I have the Breez on the nightstand for the photo. But I usually prefer to keep it further away on a chest of drawers as it’s powerful enough for the air to reach you from the other side of a large room.

At first glance, the Snooz breeze would appear to be a bit of an outlier in this article. Yes, it’s a bedroom fan that can be used to cool you at night, but it’s also a white noise machine that’s made by a company that historically specialises in those.

However, I decided to include it for a few reasons. Firstly, it looks really sleek, and I much prefer the aesthetics of it in my bedroom compared to a basic desk fan or a cumbersome floor stand fan (that I inevitably trip over in the night). The beechwood stand and rounded design of the casing just give it a much softer bedroom vibe.

Secondly, the fan has 10 speed settings, so you can tailor it to your exact preference and cooling needs. The higher settings are surprisingly powerful, pumping out significantly more airflow than my standard fan. I was also really impressed by the sound of the fan – it creates the pleasant rushing air sound with no annoying motor noise whatsoever.

And thirdly, there are some useful smart features that work very well and elevate it from being a simple fan to more of a cooling system in my opinion. The best feature for me is the room temperature sensor because you can program the fan to turn on and off when the room reaches certain temperatures. Additionally, you can set daily schedules, so the fan turns on and off exactly when you want it to without needing to use the app.

Below, you can see a screen from the app showing the current room temperature and ideal temperature I set it to turn off at.

Snooz Breez app showing the temperature settings

Finally, if you like fan sounds, the Breez actually contains two independent fans. One blows air, while the other just makes a fan sound with no airflow, which is great in the winter. You can even combine the two, and combinations of their settings from 1 to 10 to create distinct rushing air sounds. I test a lot of white noise machines on this website, and the Breez is one of my current top picks because of its natural sound and flexible options.

As for the downsides, the main one is that the fan doesn’t oscillate. You can swivel it 360 degrees on its vertical axis to point it where you like manually, but there’s no oscillation possible.

Some of the smart features and all of the timers are only available on the app, with no remote control. This is a similar issue to the Eight Sleep Pod 3 Cover, and an area where the BedJet 3 shines; not everyone want to turn their phone on in the night to adjust settings.

Overall though, the Breez is an effective fan that looks good in the bedroom and is capable of providing some powerful cooling with its fan.

Warranty / trial period

Molecule has a 100 night trial period, and a one year limited warranty.


It currently costs $199.99 in the US, but isn’t currently available in Europe.


  • Powerful fan.
  • 10 speed settings.
  • Room temperature sensing start and stop.
  • Clean aesthetic for the bedroom.
  • 2 fans for cooling or just white noise.


  • Higher price for a fan.
  • Doesn’t oscillate.
  • Smart features only available on the app, with no physical remote control.

My tips for managing heat in bed

There are many ways to keep your bedroom, bed, and body cool at night and the surface you sleep on is just one piece of the puzzle. If you’d like some more suggestions, have a read of my tips for keeping cool in bed.