0 1 2 3 Thu 18 Dec 1980 Sun 21 Dec 1980 Wed 24 Dec 1980 Sat 27 Dec 1980 Tue 30 Dec 1980 Fri 02 Jan 1981 Mon 05 Jan 1981 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