0 1 2 3 Wed 27 Dec 1972 Thu 04 Jan 1973 Fri 12 Jan 1973 Sat 20 Jan 1973 Sun 28 Jan 1973 Mon 05 Feb 1973 Tue 13 Feb 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