0 1 2 3 Fri 19 Dec 1980 Sun 28 Dec 1980 Tue 06 Jan 1981 Thu 15 Jan 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