Counteract the destructive effects of sleep deficit on the brain and body.

A nap is like a night’s sleep in miniature. It fulfills all the same functions and has the same therapeutic value. But to benefit from them fully takes awareness of the subtleties of napping: the various types of naps; proper napping position; the times most conducive to napping; the most effective nap lengths; the stages of sleep that heighten awareness, cognitive performance, memory, and creativity; and tricks for falling sleep quickly and waking up refreshed.