0 1 2 3 Tue 26 Jul 1977 Wed 03 Aug 1977 Thu 11 Aug 1977 Fri 19 Aug 1977 Sat 27 Aug 1977 Sun 04 Sep 1977 Mon 12 Sep 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