0 1 2 3 Mon 18 Dec 1961 Sat 23 Dec 1961 Thu 28 Dec 1961 Tue 02 Jan 1962 Sun 07 Jan 1962 Fri 12 Jan 1962 Wed 17 Jan 1962 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