0 1 2 3 Wed 22 Jul 1931 Mon 27 Jul 1931 Sat 01 Aug 1931 Thu 06 Aug 1931 Tue 11 Aug 1931 Sun 16 Aug 1931 Fri 21 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