0 1 2 3 Mon 20 Dec 1971 Tue 28 Dec 1971 Wed 05 Jan 1972 Thu 13 Jan 1972 Fri 21 Jan 1972 Sat 29 Jan 1972 Sun 06 Feb 1972 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