0 1 2 3 Sun 28 Dec 1919 Mon 05 Jan 1920 Tue 13 Jan 1920 Wed 21 Jan 1920 Thu 29 Jan 1920 Fri 06 Feb 1920 Sat 14 Feb 1920 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