TABLE 1.

Sample characteristics.

		Range	Mean	SD	P
Age		19–41	22	4.3	0.173
Sleep duration, previous night (h:mm)		5:50–8:37	7:10	0:46	0.021*
Sleep duration, study night (h:mm)		4:18–7:49	6:38	0:50	0.027*
	N1%	1.4–17.26	5.9	3.6	0.114
	N2%	21.6–49.3	35.5	8.1	0.555
	N3%	8.2–41.4	24.6	7.4	0.012*
	REM%	7.9–27.9	18.2	5.1	0.274
WASO (h:mm)		0:05–2:07	0:29	0:32	0.980
BDI score		0–31	10.9	9.3	0.840
GAD-7 score		1–15	5.4	4.0	0.319
Immediate recall, evening		9.5–16	13.2	2.0	0.444
Immediate recall, morning		10–16	13.8	1.7	0.918
Delayed recall, sleep		10–31.5	25.0	6.0	0.537
Delayed recall, wake		2.5–26	17.2	5.8	0.475

SD, standard deviation; p, p-value of the difference between measurement place (home/laboratory); N1–3, non-rapid eye movement sleep stages 1–3; REM, rapid eye movement sleep; WASO, wake after sleep onset; BDI, Beck Depression Inventory; GAD-7, Generalized Anxiety Disorder-7 questionnaire.

*p-value < 0.05.