0 1 2 3 Thu 20 Dec 1951 Sat 29 Dec 1951 Mon 07 Jan 1952 Wed 16 Jan 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