0 1 2 3 Fri 20 Dec 1946 Wed 01 Jan 1947 Sat 01 Feb 1947 Sat 01 Mar 1947 Thu 20 Mar 1947 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