0 1 2 3 Wed 15 Dec 1971 Wed 22 Dec 1971 Wed 29 Dec 1971 Wed 05 Jan 1972 Wed 12 Jan 1972 Wed 19 Jan 1972 Wed 26 Jan 1972 Wed 02 Feb 1972 Wed 09 Feb 1972 Tue 15 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