0 1 2 3 Tue 20 Jan 1976 Sun 01 Feb 1976 Mon 01 Mar 1976 Thu 01 Apr 1976 Mon 19 Apr 1976 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