0 1 2 3 Tue 27 Dec 1921 Sun 01 Jan 1922 Fri 06 Jan 1922 Wed 11 Jan 1922 Mon 16 Jan 1922 Sat 21 Jan 1922 Thu 26 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