0 1 2 3 Thu 17 May 1928 Fri 01 Jun 1928 Sun 01 Jul 1928 Wed 01 Aug 1928 Wed 15 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