0 1 2 3 Sun 20 Dec 1987 Fri 01 Jan 1988 Mon 01 Feb 1988 Tue 01 Mar 1988 Sat 19 Mar 1988 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