0 1 2 3 Sat 15 Dec 1956 Tue 18 Dec 1956 Fri 21 Dec 1956 Mon 24 Dec 1956 Thu 27 Dec 1956 Sun 30 Dec 1956 Wed 02 Jan 1957 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