0 1 2 3 Tue 27 Dec 1921 Fri 30 Dec 1921 Mon 02 Jan 1922 Thu 05 Jan 1922 Sun 08 Jan 1922 Wed 11 Jan 1922 Sat 14 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