0 1 2 3 Tue 31 Mar 1981 Sun 05 Apr 1981 Fri 10 Apr 1981 Wed 15 Apr 1981 Mon 20 Apr 1981 Sat 25 Apr 1981 Thu 30 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