Sleep Doctors Say This Is How Much REM Sleep You Should Be Getting Each Night

By Korin Miller, Mar 11, 2026

Deep sleep is stage 3 non-REM, which is the deepest phase of non-REM sleep, while light sleep is the initial non-REM phases of sleep, or stages 1 and 2. “Deep sleep—or slow wave sleep—is also essential, and happens more in the first half of the night,” says Alex Dimitriu, M.D., psychiatrist and sleep medicine physician, and founder of Menlo Park Psychiatry & Sleep Medicine. “The body is maximally resting during this time, and the mind is cleaning up toxins accumulated during the day.”

Click HERE for the full article.