0 1 2 3 Fri 02 Mar 1973 Fri 09 Mar 1973 Fri 16 Mar 1973 Fri 23 Mar 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