0 1 2 3 Tue 20 Mar 1973 Tue 27 Mar 1973 Tue 03 Apr 1973 Tue 10 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