0 1 2 3 Tue 07 Dec 1971 Wed 15 Dec 1971 Thu 23 Dec 1971 Fri 31 Dec 1971 Sat 08 Jan 1972 Sun 16 Jan 1972 Mon 24 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