0 1 2 3 Thu 11 Dec 1947 Fri 19 Dec 1947 Sat 27 Dec 1947 Sun 04 Jan 1948 Mon 12 Jan 1948 Tue 20 Jan 1948 Wed 28 Jan 1948 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