0 1 2 3 Thu 23 Nov 1972 Fri 01 Dec 1972 Mon 01 Jan 1973 Thu 01 Feb 1973 Mon 19 Feb 1973 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