0 1 2 3 Sat 21 Jul 1928 Thu 26 Jul 1928 Tue 31 Jul 1928 Sun 05 Aug 1928 Fri 10 Aug 1928 Wed 15 Aug 1928 Mon 20 Aug 1928 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