0 1 2 3 Mon 19 Dec 1927 Mon 26 Dec 1927 Mon 02 Jan 1928 Mon 09 Jan 1928 Mon 16 Jan 1928 Mon 23 Jan 1928 Mon 30 Jan 1928 Mon 06 Feb 1928 Mon 13 Feb 1928 Wed 15 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