0 1 2 3 Fri 02 Dec 1904 Sun 01 Jan 1905 Wed 01 Feb 1905 Wed 01 Mar 1905 Thu 02 Mar 1905 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