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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: J Sleep Res. 2011 Oct 11;21(3):235–246. doi: 10.1111/j.1365-2869.2011.00962.x

Figure 1.

Figure 1

11-day sample protocol for a child following a strict sleep schedule with a 20:00 bedtime, a 7:00 rise time, and a 12:30–14:00 afternoon nap opportunity (12.5-hours time in bed/24 hour period). Solid black bars represent time in bed; white bars represent periods of wakefulness. Alternate forms of emotion assessments (E1=Nap; E2=No-Nap) occurred after 5 days on this stable sleep schedule. Emotion assessments took place 1 hour after regularly scheduled nap rise time.