0 1 2 3 Sat 08 Dec 1973 Tue 11 Dec 1973 Fri 14 Dec 1973 Mon 17 Dec 1973 Thu 20 Dec 1973 Sun 23 Dec 1973 Wed 26 Dec 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