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Sleep Science Blog

Sleep Environment

Research-backed guides on REM sleep, deep sleep, sleep supplements, temperature, and everything that affects your sleep quality.

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Sleep Environment

How Sleep Temperature Affects REM Sleep: The Complete Guide

Your mattress temperature is the most controllable factor affecting how much REM sleep you get each night. Here is the science behind why, and exactly what to do about it.

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Temperature Is the #1 REM Lever

The Easiest Way to Get More REM Sleep Starts Tonight

Keeping your sleep surface at 65-68°F is one of the most evidence-backed interventions for increasing REM sleep. The Good Sleep System does this automatically, all night, without a subscription or a $5,000 price tag.

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