0 1 2 3 Thu 30 Sep 1920 Fri 01 Oct 1920 Mon 01 Nov 1920 Wed 01 Dec 1920 Sat 01 Jan 1921 Tue 01 Feb 1921 Sun 20 Feb 1921 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