Table 2.

Baseline Polysomnography

Sleep Variables*	Mean (SD)
Time in Bed (minutes)	467.7 (51.6)
Sleep Period Time (minutes)	442.3 (61.6)
Total Sleep Time (minutes)	318.3 (65.8)
Sleep Latency (minutes)	19.7 (21.5)
WASO (minutes)	121.8 (54.2)
Sleep Efficiency (%TIB)	68.1 (12.2)
Stages (% of sleep period time)
Wake	27.4 (11.5)
NREM 1	9.1 (4.3)
NREM 2	36.5 (10.3)
NREM 3 and 4 (SWS)	9.6 (7.6)
REM	17.1 (5.0)

^*Baseline PSG-defined sleep variables outcomes represent the average of Nights 1 & 2 (screening and baseline) in the sleep laboratory.