Eight Sleep is a tech-focused sleep company that makes some really innovative products. I recently reviewed their Pod sleep system which is can regulate your temperature as you sleep resulting in better, more restorative sleep. In keeping with their theme of regulating temperature, they have launched the Carbon Air Pillow which is designed to keep your head cool. This is primarily a foam pillow with a good helping of phase change material on one side. It retails for $150 which is expensive but in my experience, it is one of the few all foam pillows that actually lives up to its claims.

Overview of the Eight Sleep Pillow

This pillow is a foam pillow infused with carbon. What are the benefits of a carbon-infused pillow? Carbon is known for its ability to absorb odors and moisture making a perfect addition to pillows that are in constant contact with your skin and breath.  As you can see in the picture above the pillow has tiny holes which make it very breathable. If you press down on the pillow you will feel air flow through it, it also makes the pillow softer and recover faster.  On the other side you will find the phase change material that is cool to the touch and helps dissipate heat. So, if you want an even cooler pillow, you would use this side.

All these technologies add up to a cool and comfortable pillow. There are many pillows on the market that have the cool to the touch phase change material but how much they use varies considerably. This means that it may feel cool for a few minutes but then dissipate rapidly. The same could be said with this pillow but I found that they use quite a bit of the phase change material but they way the pillow is engineered makes it cool, even without the phase change material.

Here you can see how quickly the pillow recovers.

Finally, the pillow is covered in a zippable cover made of Tencel fabric. Tencel fiber is cooler than cotton and even silk.

My Eight Sleep Pillow Recommendation

This pillow only comes in one size and I would say its made for people with a medium build. I found it to be a little too thin for my larger frame for side sleeping although it would work fine for stomach or back sleeping. That said, you can always put another pillow under it for support and it won’t take away from the cooling effect.

This pillow comes with a 5-year warranty which is impressive. It’s not often I come across pillows with any warranty. You also get a 30-day trial where you can try it out for 30 days and if you don’t like it, you get a full refund.

The Eight Sleep carbon cool pillow is a great choice for hot sleepers. It is soft and comfortable giving you all the pressure-relieving benefits of foam without all the drawbacks of heat retention.