0 1 2 3 Sun 25 Jan 1920 Sun 01 Feb 1920 Mon 01 Mar 1920 Thu 01 Apr 1920 Sat 01 May 1920 Tue 01 Jun 1920 Thu 01 Jul 1920 Sun 01 Aug 1920 Wed 01 Sep 1920 Fri 01 Oct 1920 Mon 01 Nov 1920 Wed 01 Dec 1920 Sat 01 Jan 1921 Sun 23 Jan 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