0 1 2 3 Wed 07 Dec 1977 Wed 14 Dec 1977 Wed 21 Dec 1977 Wed 28 Dec 1977 Wed 04 Jan 1978 Wed 11 Jan 1978 Wed 18 Jan 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