0 1 2 3 Sun 10 Dec 1911 Mon 01 Jan 1912 Thu 01 Feb 1912 Fri 01 Mar 1912 Sat 09 Mar 1912 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