0 1 2 3 Wed 22 Dec 1971 Mon 27 Dec 1971 Sat 01 Jan 1972 Thu 06 Jan 1972 Tue 11 Jan 1972 Sun 16 Jan 1972 Fri 21 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