0 1 2 3 Tue 20 Feb 1968 Fri 01 Mar 1968 Mon 01 Apr 1968 Wed 01 May 1968 Mon 20 May 1968 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