0 1 2 3 Sun 21 Dec 1919 Sun 28 Dec 1919 Sun 04 Jan 1920 Sun 11 Jan 1920 Sun 18 Jan 1920 Sun 25 Jan 1920 Sun 01 Feb 1920 Sun 08 Feb 1920 Thu 12 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