0 1 2 3 Fri 09 Feb 1940 Fri 01 Mar 1940 Mon 01 Apr 1940 Wed 01 May 1940 Thu 09 May 1940 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