0 1 2 3 Thu 01 Dec 1921 Fri 09 Dec 1921 Sat 17 Dec 1921 Sun 25 Dec 1921 Mon 02 Jan 1922 Tue 10 Jan 1922 Wed 18 Jan 1922 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