0 1 2 3 Tue 20 Feb 1973 Tue 27 Feb 1973 Tue 06 Mar 1973 Tue 13 Mar 1973 Tue 20 Mar 1973 Tue 27 Mar 1973 Tue 03 Apr 1973 Tue 10 Apr 1973 Tue 17 Apr 1973 Fri 20 Apr 1973 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