0 1 2 3 Fri 05 Dec 1980 Thu 01 Jan 1981 Sun 01 Feb 1981 Sun 01 Mar 1981 Wed 01 Apr 1981 Fri 01 May 1981 Mon 01 Jun 1981 Wed 01 Jul 1981 Sat 01 Aug 1981 Tue 01 Sep 1981 Thu 01 Oct 1981 Sun 01 Nov 1981 Tue 01 Dec 1981 Sat 05 Dec 1981 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