0 1 2 3 Sun 13 Dec 1981 Tue 22 Dec 1981 Thu 31 Dec 1981 Sat 09 Jan 1982 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