0 1 2 3 Sun 13 Dec 1936 Thu 17 Dec 1936 Mon 21 Dec 1936 Fri 25 Dec 1936 Tue 29 Dec 1936 Sat 02 Jan 1937 Wed 06 Jan 1937 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