0 1 2 3 Wed 25 Dec 1968 Wed 01 Jan 1969 Sat 01 Feb 1969 Sat 01 Mar 1969 Tue 25 Mar 1969 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