0 1 2 3 Tue 14 Dec 1976 Fri 17 Dec 1976 Mon 20 Dec 1976 Thu 23 Dec 1976 Sun 26 Dec 1976 Wed 29 Dec 1976 Sat 01 Jan 1977 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