0 1 2 3 Tue 27 Dec 1938 Sun 01 Jan 1939 Wed 01 Feb 1939 Wed 01 Mar 1939 Mon 27 Mar 1939 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