0 1 2 3 Thu 20 Dec 1928 Sun 23 Dec 1928 Wed 26 Dec 1928 Sat 29 Dec 1928 Tue 01 Jan 1929 Fri 04 Jan 1929 Mon 07 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