0 1 2 3 Sat 12 Dec 1981 Tue 15 Dec 1981 Fri 18 Dec 1981 Mon 21 Dec 1981 Thu 24 Dec 1981 Sun 27 Dec 1981 Wed 30 Dec 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