Table 1.
Sleep architecture data
| Characteristic | |
|---|---|
| Sleep-onset latency (min) | 17 ± 7 |
| Total sleep time (min) | 233 ± 12 |
| Sleep efficiency (%) | 68 ± 4 |
| Stage 1 (% total sleep time) | 15 ± 3 |
| Stage 2 (%total sleep time) | 52 ± 3 |
| SWS (%total sleep time) | 29 ± 4 |
| REM (%total sleep time) | 5 ± 1 |
| Arousal Index (arousals h−1) | 24 ± 3 |
Slow wave sleep (SWS), rapid eye movement sleep (REM). Values are means ± s.e.m. (n = 17 subjects).