Table 4.

Total amounts (minutes, mean ± SEM) of slow-wave sleep (SWS), rapid eye movement sleep (REMS), and wakefulness for 6, 9, 12, and 24 h after “Sleep deprivation,” “No resident,” and “No contact” sessions.

		Sleep deprivation n = 4	No resident n = 4	No contact n = 8
SWS (min)
6 h	Baseline	94.4 ± 10.9	103.1 ± 9.9	93.7 ± 8.7
	After session	132.0 ± 12.8**	118.7 ± 18.5	119.9 ± 7.0**
9 h	Baseline	166.0 ± 12.9	186.7 ± 15.9	150.6 ± 12.2
	After session	213.3 ± 10.7***	201.7 ± 21.2	192.0 ± 11.5*
12 h	Baseline	228.3 ± 19.9	229.3 ± 18.0	214.4 ± 12.6
	After session	263.8 ± 23.8**	239.9 ± 17.3	242.8 ± 10.6
24 h	Baseline	619.6 ± 25.0	616.7 ± 8.4	623.1 ± 10.7
	After session	666.8 ± 37.3*	648.1 ± 13.7	653.9 ± 15.3
REMS (min)
6 h	Baseline	3.8 ± 1.3	3.7 ± 1.2	4.8 ± 1.0
	After session	8.6 ± 0.6	6.4 ± 1.9	7.0 ± 1.2
9 h	Baseline	11.2 ± 1.9	8.0 ± 3.4	8.8 ± 1.6
	After session	18.1 ± 2.6	13.2 ± 3.7	14.6 ± 2.1
12 h	Baseline	15.6 ± 2.1	9.4 ± 3.7	12.7 ± 1.9
	After session	21.6 ± 2.4	16.3 ± 3.3	17.8 ± 2.0
24 h	Baseline	77.2 ± 3.0	61.2 ± 2.2	70.6 ± 2.8
	After session	83.0 ± 3.3	74.7 ± 4.4	79.4 ± 3.9**
Wakefulness (min)
6 h	Baseline	261.8 ± 11.5	253.2 ± 11.0	261.6 ± 9.0
	After session	219.4 ± 12.4***	235.0 ± 20.3	233.1 ± 7.7**
9 h	Baseline	362.8 ± 13.7	345.3 ± 18.9	380.5 ± 12.8
	After session	308.7 ± 9.8**	325.1 ± 24.9	333.4 ± 12.7*
12 h	Baseline	476.1 ± 20.2	481.3 ± 21.4	492.9 ± 13.3
	After session	434.6 ± 22.7**	463.8 ± 20.1	459.4 ± 11.6
24 h	Baseline	743.2 ± 23.1	762.1 ± 6.3	746.3 ± 9.8
	After session	690.2 ± 39.8	717.2 ± 16.6	706.7 ± 15.7*

^∗P < 0.05, ^∗∗P < 0.01, and ^∗∗∗P < 0.001 compared with baseline, assessed by paired two-tailed Student’s