0 1 2 3 Sun 05 Dec 1920 Mon 13 Dec 1920 Tue 21 Dec 1920 Wed 29 Dec 1920 Thu 06 Jan 1921 Fri 14 Jan 1921 Sat 22 Jan 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