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