0 1 2 3 Mon 28 Feb 1977 Fri 04 Mar 1977 Tue 08 Mar 1977 Sat 12 Mar 1977 Wed 16 Mar 1977 Sun 20 Mar 1977 Thu 24 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