0 1 2 3 Fri 26 Dec 1919 Fri 02 Jan 1920 Fri 09 Jan 1920 Fri 16 Jan 1920 Fri 23 Jan 1920 Fri 30 Jan 1920 Fri 06 Feb 1920 Fri 13 Feb 1920 Tue 17 Feb 1920 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