0 1 2 3 Thu 07 Dec 1972 Tue 12 Dec 1972 Sun 17 Dec 1972 Fri 22 Dec 1972 Wed 27 Dec 1972 Mon 01 Jan 1973 Sat 06 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