0 1 2 3 Tue 11 Dec 1973 Thu 20 Dec 1973 Sat 29 Dec 1973 Mon 07 Jan 1974 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