0 1 2 3 Wed 08 Mar 1972 Thu 16 Mar 1972 Fri 24 Mar 1972 Sat 01 Apr 1972 Sun 09 Apr 1972 Mon 17 Apr 1972 Tue 25 Apr 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