0 1 2 3 Sun 09 Jul 1972 Tue 01 Aug 1972 Fri 01 Sep 1972 Sun 01 Oct 1972 Sat 07 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