The 8 Sleep Pod Pro Cover.

I’ve always found that quality sleep is something that is wildly overlooked by most of society, and thought it’s something worth investing in (nice mattress, etc). The 8 Sleep is essentially a liquid cooled mattress cover that adjusts the temperature (either cooler or hotter) to you and your partners preferences (there’s two different zones). I’m a former power lifter and still primarily lift as a sport—as a result I have a lot of skeletal muscle and tend to run very hot. The 8 Sleep has quite literally changed my life. My wife agrees. It also dynamically measures your HRV, HR, and RR. If you use the autopilot function it will dynamically adjust the temperature during the night based on your biometrics to maximize REM and SWS.

It’s definitely the best tech purchase over >$1K I’ve ever made, and it’s one of the best purchases I’ve made in my life. I used to wake up hot multiple times per night. I had been tracking my sleep for a year using wearables before I got it and it’s nearly doubled my nightly REM and SWS. When needed I can feel refreshed after like 5-6 hours of sleep.