0 1 2 3 Tue 21 Dec 1937 Sun 26 Dec 1937 Fri 31 Dec 1937 Wed 05 Jan 1938 Mon 10 Jan 1938 Sat 15 Jan 1938 Thu 20 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