0 1 2 3 Tue 01 Feb 1977 Sun 06 Feb 1977 Fri 11 Feb 1977 Wed 16 Feb 1977 Mon 21 Feb 1977 Sat 26 Feb 1977 Thu 03 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