0 1 2 3 Mon 03 Jul 1972 Tue 11 Jul 1972 Wed 19 Jul 1972 Thu 27 Jul 1972 Fri 04 Aug 1972 Sat 12 Aug 1972 Sun 20 Aug 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