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Typical Changes that Occur in Sleep Patterns with Age
| Total sleep time decreases |
| Sleep onset or latency becomes delayed |
| Increased daytime napping |
| Increase in awakenings and arousals |
| Decreased sleep efficiency |
| Increased stage 1 and 2 sleep |
| Decreased stage 3 and 4 sleep or slow wave sleep (SWS) |
| Circadian phase advanced (i.e., early to bed and early to rise) |
| Decreased rapid-eye movement (REM) sleep |
| Fewer sleep cycles through per night |
