0 1 2 3 Mon 27 Dec 1869 Sat 01 Jan 1870 Tue 01 Feb 1870 Tue 01 Mar 1870 Sun 27 Mar 1870 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