0 1 2 3 Mon 05 Dec 1927 Sat 10 Dec 1927 Thu 15 Dec 1927 Tue 20 Dec 1927 Sun 25 Dec 1927 Fri 30 Dec 1927 Wed 04 Jan 1928 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