0 1 2 3 Wed 10 Sep 1952 Mon 15 Sep 1952 Sat 20 Sep 1952 Thu 25 Sep 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