0 1 2 3 Tue 09 Aug 1921 Fri 12 Aug 1921 Mon 15 Aug 1921 Thu 18 Aug 1921 Sun 21 Aug 1921 Wed 24 Aug 1921 Sat 27 Aug 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