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. 2014 Jul 15;10(7):719–722. doi: 10.5664/jcsm.3854

Figure 2. (A) Time in bed (TIB) and (B) Estimated sleep time (EST) of the five participants.

Figure 2

For each subject, data are presented as mean values, averaged across the period (14 days), during (56 days), and after the Stone-Age-like period (14 days).