Table 1.

Sleep characteristics during the night and day (n=73)

	Mean	CI	Range
Night
Total sleep time (h/night)	6.0	5.6–6.4	1.2–9.6
Percent sleep at night	76	73–79	26–97
Wake after sleep onset (h/night)	1.8	1.6–2.0	0.24–7.1
Percent wake at night	24	21–27	2.9–74
Number of sleep episodes/night	59	51–67	9–203
Number of wake episodes/night	60	52–68	9–204
Day
Total nap time (h/day)	1.1	0.9–1.3	0.02–5.1
Percent sleep during the day	9	6.4–11.6	0.3–84
Total wake time (h/day)	12.2	11.6–12.8	4.0–15.8
Percent wake during the day	92	90–94	60–99.7
Mean duration of naps (min)	7.5	6.6–8.4	5–18.6