Table 3.

Comparison of sleep architecture between men and women.

	Men	Women	P-value
Age	23.3 ± 0.4	23.6 ± 0.5	0.615
Total bedtime, min	480 ± 0	480 ± 0
Total sleep time, min	452 ± 3	447 ± 5	0.371
Wakefulness, min	26 ± 3	26 ± 5	0.934
Sleep latency, min	8 ± 1	9 ± 2	0.743
Sleep efficiency, %	94 ± 1	93 ± 1	0.455
Stage 1, min	45 ± 3	42 ± 5	0.601
Stage 2, min	240 ± 6	236 ± 8	0.635
SWS, min	83 ± 6	88 ± 8	0.609
REM sleep, min	84 ± 3	81 ± 4	0.507
REM sleep latency, min	116 ± 8	112 ± 7	0.702

Values are means ± SE for men (n = 34) and women (n = 27)^8,23–25.