How many hours of REM sleep should one average?

Question

Ask Huberman Lab · Accepted Answer

A specific average number of REM-sleep hours isn’t given. A 7.5–8-hour night is described as typically including about four to five sleep cycles, each containing a REM period; REM periods become longer later in the night. - Sleep cycles: They last about 90 minutes on average and include both non-REM and REM sleep. - First REM period: It begins roughly 95–105 minutes after falling asleep and lasts about 10–20 minutes. - Consistency: Keeping sleep duration consistent is emphasized; REM sleep is concentrated more toward morning, so regularly shortening sleep can cut into it.

How many hours of REM sleep should one average?

Sleep Cycles And REM Periods

The 90 Minute Sleep Cycle

Timing Of The First REM Period

Sleep Consistency And REM