0 1 2 3 Wed 02 Aug 1972 Mon 07 Aug 1972 Sat 12 Aug 1972 Thu 17 Aug 1972 Tue 22 Aug 1972 Sun 27 Aug 1972 Fri 01 Sep 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