0 1 2 3 Sat 31 Dec 1977 Sat 07 Jan 1978 Sat 14 Jan 1978 Sat 21 Jan 1978 Sat 28 Jan 1978 Sat 04 Feb 1978 Sat 11 Feb 1978 Sat 18 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