0 1 2 3 Tue 20 Dec 1977 Wed 28 Dec 1977 Thu 05 Jan 1978 Fri 13 Jan 1978 Sat 21 Jan 1978 Sun 29 Jan 1978 Mon 06 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