0 1 2 3 Fri 31 Jul 1987 Fri 07 Aug 1987 Fri 14 Aug 1987 Fri 21 Aug 1987 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