0 1 2 3 Sun 03 Sep 1972 Fri 08 Sep 1972 Wed 13 Sep 1972 Mon 18 Sep 1972 Sat 23 Sep 1972 Thu 28 Sep 1972 Tue 03 Oct 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