0 1 2 3 Sat 09 Dec 1967 Mon 01 Jan 1968 Thu 01 Feb 1968 Fri 01 Mar 1968 Fri 08 Mar 1968 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