This is especially true, according to the experts at The Sleep Foundation, for REM sleep. On their website, The Sleep Foundation states: “REM is involved in a host of important functions ...

Let these charts teach you how to sleep less ... while in the morning, REM sleep takes over more of the cycle. Therefore, on a polyphasic schedule, you'll receive short-wave restoration during ...

Researchers sought to better understand the connection between REM sleep patterns in patients with either insomnia or MDD.