0 1 2 3 Mon 10 Dec 1928 Fri 14 Dec 1928 Tue 18 Dec 1928 Sat 22 Dec 1928 Wed 26 Dec 1928 Sun 30 Dec 1928 Thu 03 Jan 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