0 1 2 3 Sun 30 Dec 1877 Mon 07 Jan 1878 Tue 15 Jan 1878 Wed 23 Jan 1878 Thu 31 Jan 1878 Fri 08 Feb 1878 Sat 16 Feb 1878 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