0 1 2 3 Mon 31 Jan 1977 Sat 05 Feb 1977 Thu 10 Feb 1977 Tue 15 Feb 1977 Sun 20 Feb 1977 Fri 25 Feb 1977 Wed 02 Mar 1977 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