0 1 2 3 Mon 13 Dec 1971 Mon 20 Dec 1971 Mon 27 Dec 1971 Mon 03 Jan 1972 Mon 10 Jan 1972 Mon 17 Jan 1972 Mon 24 Jan 1972 Mon 31 Jan 1972 Sat 05 Feb 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