0 1 2 3 Tue 01 Aug 1972 Fri 04 Aug 1972 Mon 07 Aug 1972 Thu 10 Aug 1972 Sun 13 Aug 1972 Wed 16 Aug 1972 Sat 19 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