0 1 2 3 Sun 22 Dec 1867 Wed 01 Jan 1868 Sat 01 Feb 1868 Sun 01 Mar 1868 Fri 20 Mar 1868 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