0 1 2 3 Tue 17 Jan 1978 Wed 01 Feb 1978 Wed 01 Mar 1978 Sat 01 Apr 1978 Mon 17 Apr 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