0 1 2 3 Tue 11 Dec 1951 Sat 15 Dec 1951 Wed 19 Dec 1951 Sun 23 Dec 1951 Thu 27 Dec 1951 Mon 31 Dec 1951 Fri 04 Jan 1952 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