. Author manuscript; available in PMC: 2019 Aug 1.

Published in final edited form as: J Sleep Res. 2019 Apr 2;28(4):e12854. doi: 10.1111/jsr.12854

TABLE 6.

First night of event markers (MARK) actigraphy compared to MARK on Nights 2–7 (n = 21)

	Night-1 MARK	Night-2–7 MARK	Night 1/Nights 2–7 difference
TIB (min)	509.0 (22.44)	479.5 (14.13)	29.5
TST (min)^a	432.8 (17.67)	385.8 (12.75)	47.0
SE (%)	86.1 (1.64)	80.9 (1.62)	5.2^b
SOL (min)	17.1 (7.27)	32.7 (7.97)	−15.6
WASO (min)	44.8 (5.61)	36.6 (3.63)	8.2

Mean (SE) versus Night 1 p < 0.02,

Mean (SE) versus Night 1 p < 0.001. TIB, time in bed; TST: total sleep time; SE: sleep efficiency; SOL: sleep-onset latency; WASO: wake after sleep onset.