0 1 2 3 Sat 18 Dec 1937 Thu 23 Dec 1937 Tue 28 Dec 1937 Sun 02 Jan 1938 Fri 07 Jan 1938 Wed 12 Jan 1938 Mon 17 Jan 1938 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