0 1 2 3 Fri 21 Dec 1956 Sat 05 Jan 1957 Sun 20 Jan 1957 Mon 04 Feb 1957 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