0 1 2 3 Sat 27 Mar 1971 Wed 31 Mar 1971 Sun 04 Apr 1971 Thu 08 Apr 1971 Mon 12 Apr 1971 Fri 16 Apr 1971 Tue 20 Apr 1971 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