0 1 2 3 Thu 09 Dec 1915 Mon 13 Dec 1915 Fri 17 Dec 1915 Tue 21 Dec 1915 Sat 25 Dec 1915 Wed 29 Dec 1915 Sun 02 Jan 1916 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