0 1 2 3 Thu 16 Dec 1971 Sun 19 Dec 1971 Wed 22 Dec 1971 Sat 25 Dec 1971 Tue 28 Dec 1971 Fri 31 Dec 1971 Mon 03 Jan 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