0 1 2 3 Mon 21 Dec 1931 Sat 26 Dec 1931 Thu 31 Dec 1931 Tue 05 Jan 1932 Sun 10 Jan 1932 Fri 15 Jan 1932 Wed 20 Jan 1932 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