0 1 2 3 Tue 08 Sep 1981 Fri 11 Sep 1981 Mon 14 Sep 1981 Thu 17 Sep 1981 Sun 20 Sep 1981 Wed 23 Sep 1981 Sat 26 Sep 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