0 1 2 3 Fri 09 Dec 1977 Mon 12 Dec 1977 Thu 15 Dec 1977 Sun 18 Dec 1977 Wed 21 Dec 1977 Sat 24 Dec 1977 Tue 27 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