0 1 2 3 Fri 31 Jan 1975 Fri 07 Feb 1975 Fri 14 Feb 1975 Fri 21 Feb 1975 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