0 1 2 3 Sun 09 Dec 1956 Thu 13 Dec 1956 Mon 17 Dec 1956 Fri 21 Dec 1956 Tue 25 Dec 1956 Sat 29 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