0 1 2 3 Fri 11 Feb 1921 Fri 18 Feb 1921 Fri 25 Feb 1921 Fri 04 Mar 1921 Fri 11 Mar 1921 Fri 18 Mar 1921 Fri 25 Mar 1921 Fri 01 Apr 1921 Fri 08 Apr 1921 Tue 12 Apr 1921 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