0 1 2 3 Mon 07 Feb 1972 Mon 14 Feb 1972 Mon 21 Feb 1972 Mon 28 Feb 1972 Mon 06 Mar 1972 Mon 13 Mar 1972 Mon 20 Mar 1972 Mon 27 Mar 1972 Fri 31 Mar 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