0 1 2 3 Sun 17 Dec 1978 Wed 20 Dec 1978 Sat 23 Dec 1978 Tue 26 Dec 1978 Fri 29 Dec 1978 Mon 01 Jan 1979 Thu 04 Jan 1979 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