0 1 2 3 Fri 21 Mar 1952 Wed 26 Mar 1952 Mon 31 Mar 1952 Sat 05 Apr 1952 Thu 10 Apr 1952 Tue 15 Apr 1952 Sun 20 Apr 1952 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