0 1 2 3 Tue 25 Jan 1972 Wed 02 Feb 1972 Thu 10 Feb 1972 Fri 18 Feb 1972 Sat 26 Feb 1972 Sun 05 Mar 1972 Mon 13 Mar 1972 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