Table 1.

Sleep Parameters.

Sleep parameter	Mean ± SEM
WASO (min)	26.31 ± 5.58
N1 (min)	24.69 ± 2.66
N2 (min)	253.25 ± 15.28
N3 (min)	138.83 ± 10.78
REM (min)	96.25 ± 8.70
SPT (min)	539.78 ± 16.42
% WASO	4.83 ± 0.99
% N1	4.56 ± 0.44
% N2	46.68 ± 2.07
% N3	26.18 ± 2.13
% REM	17.68 ± 1.45

Note. Means in % ± SEM relative sleep period time and min ± SEM. Given is the time spent awake after sleep onset (WASO), in sleep stage 1 (N1), sleep stage 2 (N2), sleep stage 3 (N3), rapid eye movement (REM) sleep and Sleep Period Time (SPT) including WASO.