0 1 2 3 Mon 04 Sep 1972 Sat 09 Sep 1972 Thu 14 Sep 1972 Tue 19 Sep 1972 Sun 24 Sep 1972 Fri 29 Sep 1972 Wed 04 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