0 1 2 3 Fri 21 Oct 1955 Tue 01 Nov 1955 Thu 01 Dec 1955 Sun 01 Jan 1956 Wed 01 Feb 1956 Thu 01 Mar 1956 Fri 30 Mar 1956 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