0 1 2 3 Sat 09 Jul 1977 Sat 16 Jul 1977 Sat 23 Jul 1977 Sat 30 Jul 1977 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