0 1 2 3 Fri 29 Dec 1972 Sat 13 Jan 1973 Sun 28 Jan 1973 Mon 12 Feb 1973 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