0 1 2 3 Wed 29 Dec 1971 Mon 03 Jan 1972 Sat 08 Jan 1972 Thu 13 Jan 1972 Tue 18 Jan 1972 Sun 23 Jan 1972 Fri 28 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