0 1 2 3 Mon 06 Dec 1976 Thu 09 Dec 1976 Sun 12 Dec 1976 Wed 15 Dec 1976 Sat 18 Dec 1976 Tue 21 Dec 1976 Fri 24 Dec 1976 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