0 1 2 3 Sat 01 Dec 1928 Tue 04 Dec 1928 Fri 07 Dec 1928 Mon 10 Dec 1928 Thu 13 Dec 1928 Sun 16 Dec 1928 Wed 19 Dec 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