0 1 2 3 Thu 18 Dec 1980 Tue 23 Dec 1980 Sun 28 Dec 1980 Fri 02 Jan 1981 Wed 07 Jan 1981 Mon 12 Jan 1981 Sat 17 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