0 1 2 3 Wed 01 Apr 1931 Sat 04 Apr 1931 Tue 07 Apr 1931 Fri 10 Apr 1931 Mon 13 Apr 1931 Thu 16 Apr 1931 Sun 19 Apr 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