0 1 2 3 Tue 11 Dec 1951 Tue 01 Jan 1952 Fri 01 Feb 1952 Sat 01 Mar 1952 Mon 10 Mar 1952 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