0 1 2 3 Fri 09 Dec 1960 Sun 01 Jan 1961 Wed 01 Feb 1961 Wed 01 Mar 1961 Thu 09 Mar 1961 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