0 1 2 3 Thu 21 Jul 1927 Fri 29 Jul 1927 Sat 06 Aug 1927 Sun 14 Aug 1927 Mon 22 Aug 1927 Tue 30 Aug 1927 Wed 07 Sep 1927 Hours Slept Hours Slept Rolling Average Total Time in Bed Total Rolling Average <- Previous Period Next Period -> Date Range: to Offset: hours Data: Hours Slept Hours Laying Awake Total Time in Bed Total Dreams Show: Raw Data Rolling Average Rolling Average: Start from Zero Events: None Major All