0 1 2 3 Sat 08 Jul 1972 Sat 15 Jul 1972 Sat 22 Jul 1972 Sat 29 Jul 1972 Sat 05 Aug 1972 Sat 12 Aug 1972 Sat 19 Aug 1972 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