0 1 2 3 Fri 11 Mar 1977 Mon 14 Mar 1977 Thu 17 Mar 1977 Sun 20 Mar 1977 Wed 23 Mar 1977 Sat 26 Mar 1977 Tue 29 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