0 1 2 3 Tue 07 Dec 1920 Tue 14 Dec 1920 Tue 21 Dec 1920 Tue 28 Dec 1920 Tue 04 Jan 1921 Tue 11 Jan 1921 Tue 18 Jan 1921 Tue 25 Jan 1921 Tue 01 Feb 1921 Tue 08 Feb 1921 Tue 15 Feb 1921 Tue 22 Feb 1921 Thu 24 Feb 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