0 1 2 3 Sun 04 Dec 1887 Sun 01 Jan 1888 Wed 01 Feb 1888 Thu 01 Mar 1888 Sun 01 Apr 1888 Wed 25 Apr 1888 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