0 1 2 3 Tue 28 Dec 1971 Sun 02 Jan 1972 Fri 07 Jan 1972 Wed 12 Jan 1972 Mon 17 Jan 1972 Sat 22 Jan 1972 Thu 27 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