0 1 2 3 Tue 20 Dec 1927 Tue 27 Dec 1927 Tue 03 Jan 1928 Tue 10 Jan 1928 Tue 17 Jan 1928 Tue 24 Jan 1928 Tue 31 Jan 1928 Tue 07 Feb 1928 Sat 11 Feb 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