0 1 2 3 Tue 14 Nov 1972 Tue 21 Nov 1972 Tue 28 Nov 1972 Tue 05 Dec 1972 Tue 12 Dec 1972 Tue 19 Dec 1972 Tue 26 Dec 1972 Tue 02 Jan 1973 Tue 09 Jan 1973 Thu 11 Jan 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