0 1 2 3 Sun 01 Aug 1971 Mon 16 Aug 1971 Tue 31 Aug 1971 Wed 15 Sep 1971 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