0 1 2 3 Fri 23 Dec 1977 Fri 30 Dec 1977 Fri 06 Jan 1978 Fri 13 Jan 1978 Fri 20 Jan 1978 Fri 27 Jan 1978 Fri 03 Feb 1978 Fri 10 Feb 1978 Fri 17 Feb 1978 Mon 20 Feb 1978 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