0 1 2 3 Thu 10 Mar 1977 Fri 18 Mar 1977 Sat 26 Mar 1977 Sun 03 Apr 1977 Mon 11 Apr 1977 Tue 19 Apr 1977 Wed 27 Apr 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