0 1 2 3 Thu 13 Dec 1928 Tue 18 Dec 1928 Sun 23 Dec 1928 Fri 28 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