How much sleep do men over 40 really need?

Most men over 40 should aim for 7–9 hours of total sleep per night, but the real goal is accumulating 3–4 hours of restorative sleep, which includes Deep Sleep (Slow Wave Sleep) and REM Sleep (Rapid Eye Movement Sleep). These are the sleep stages responsible for testosterone production, muscle repair, fat metabolism, memory consolidation, immune function, recovery, and healthy aging. Men who focus only on total sleep hours often miss the most important factor: sleep quality.

Episode Summary

Most men think sleep is about getting seven to nine hour...