0 1 2 3 Tue 12 Jul 1977 Mon 01 Aug 1977 Thu 01 Sep 1977 Sat 01 Oct 1977 Mon 10 Oct 1977 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