0 1 2 3 Mon 18 Dec 1939 Fri 22 Dec 1939 Tue 26 Dec 1939 Sat 30 Dec 1939 Wed 03 Jan 1940 Sun 07 Jan 1940 Thu 11 Jan 1940 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