0 1 2 3 Mon 21 Dec 1931 Fri 01 Jan 1932 Mon 01 Feb 1932 Tue 01 Mar 1932 Sun 20 Mar 1932 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