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A nap of about 20 minutes brings gains in alertness and concentration without the grogginess of sleep inertia.
Drawn from what Matthew Walker said
What Matthew Walker actually said
- Matthew Walker Professor of neuroscience and psychology at the University of California
by cutting your nap off at 20 minutes you still get these nice benefits from a good chunk of healthy non-rem sleep but you're not going so far into the cycle so deep into your nonr that when you wake up after 20 minutes you're not in that what we call Sleep inertia phase
Added to korrents 9 Oct 2026 · How quotes work · Something wrong? Tell us
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