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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Photochem Photobiol. 2014 May-Jun;90(3):723–726. doi: 10.1111/php.12241

Table 1.

Sleep parameters derived from wrist actigraphy in the dim versus bright condition.

Dim Light Bright Light
Mean SD Mean SD
Sleep onset (time)† 00:13 1.0 h 00:27 0.9 h
Sleep offset (time) 07:47 1.1 h 07:52 1.0 h
Total sleep time (mins) 453.8 78.0 445.0 67.0
Wake after sleep onset (mins) 48.8 25.1 50.2 27.4
†

p≤0.05 Condition main effect