0 1 2 3 Wed 20 Jul 1977 Thu 28 Jul 1977 Fri 05 Aug 1977 Sat 13 Aug 1977 Sun 21 Aug 1977 Mon 29 Aug 1977 Tue 06 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