0 1 2 3 Wed 25 Feb 1981 Thu 12 Mar 1981 Fri 27 Mar 1981 Sat 11 Apr 1981 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