0 1 2 3 Wed 21 Dec 1927 Mon 26 Dec 1927 Sat 31 Dec 1927 Thu 05 Jan 1928 Tue 10 Jan 1928 Sun 15 Jan 1928 Fri 20 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