0 1 2 3 Tue 23 Jun 1931 Tue 30 Jun 1931 Tue 07 Jul 1931 Tue 14 Jul 1931 Tue 21 Jul 1931 Tue 28 Jul 1931 Tue 04 Aug 1931 Tue 11 Aug 1931 Tue 18 Aug 1931 Thu 20 Aug 1931 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