0 1 2 3 Mon 16 Dec 1907 Wed 01 Jan 1908 Sat 01 Feb 1908 Sun 01 Mar 1908 Sun 15 Mar 1908 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