0 1 2 3 Sun 09 Jan 1921 Sun 16 Jan 1921 Sun 23 Jan 1921 Sun 30 Jan 1921 Sun 06 Feb 1921 Sun 13 Feb 1921 Sun 20 Feb 1921 Sun 27 Feb 1921 Sun 06 Mar 1921 Wed 09 Mar 1921 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