0 1 2 3 Fri 09 Feb 1968 Fri 16 Feb 1968 Fri 23 Feb 1968 Fri 01 Mar 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