0 1 2 3 Thu 31 Jan 1929 Fri 01 Feb 1929 Fri 01 Mar 1929 Mon 01 Apr 1929 Tue 30 Apr 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