0 1 2 3 Wed 21 Dec 1881 Sun 01 Jan 1882 Wed 01 Feb 1882 Wed 01 Mar 1882 Tue 21 Mar 1882 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