0 1 2 3 Fri 04 Jul 1980 Fri 01 Aug 1980 Mon 01 Sep 1980 Wed 01 Oct 1980 Sat 01 Nov 1980 Mon 01 Dec 1980 Thu 01 Jan 1981 Sun 01 Feb 1981 Sun 01 Mar 1981 Tue 10 Mar 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