0 1 2 3 Fri 01 Jan 1988 Fri 08 Jan 1988 Fri 15 Jan 1988 Fri 22 Jan 1988 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