0 1 2 3 Tue 18 Dec 1928 Tue 25 Dec 1928 Tue 01 Jan 1929 Tue 08 Jan 1929 Tue 15 Jan 1929 Tue 22 Jan 1929 Tue 29 Jan 1929 Tue 05 Feb 1929 Tue 12 Feb 1929 Sat 16 Feb 1929 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