0 1 2 3 Thu 04 Dec 1980 Thu 11 Dec 1980 Thu 18 Dec 1980 Thu 25 Dec 1980 Thu 01 Jan 1981 Thu 08 Jan 1981 Thu 15 Jan 1981 Thu 22 Jan 1981 Thu 29 Jan 1981 Tue 03 Feb 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