. Author manuscript; available in PMC: 2010 Oct 1.

Published in final edited form as: Neurobiol Learn Mem. 2009 Apr 5;92(3):327–334. doi: 10.1016/j.nlm.2009.03.007

Table 2.

Sleep parameters for the nap study (Experiment 3).

Sleep Parameter	Mean + S.E.M	% Total Sleep Time ± S.E.M
Total Sleep Time	88.1 ± 7.2
Wake After Sleep Onset	12.6 ± 3.7
Sleep Latency	13.8 ± 3.9
Stage 1	9.2 ± 0.8	15.6 ± 5.5
Stage 2	42.2 ± 4.7	44.9 ± 4.0
Stage 3	12.4 ± 2.9	13.2 ± 2.8
Stage 4	8.9 ± 2.7	10.4 ± 3.2
SWS (Stages 3 + 4)	21.2 ± 3.6	23.6 ± 4.3
REM	15.5 ± 3.0	15.8 ± 2.9

Note. All measures are in minutes. Sleep Latency = latency to sleep onset (first epoch of sleep), S1-S4, Stages 1-4; SWS, slow wave sleep; REM, Rapid Eye Movement sleep.