0 1 2 3 Fri 11 Nov 1977 Thu 01 Dec 1977 Sun 01 Jan 1978 Wed 01 Feb 1978 Thu 09 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