0 1 2 3 Tue 03 Aug 1971 Wed 01 Sep 1971 Fri 01 Oct 1971 Mon 01 Nov 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