0 1 2 3 Fri 08 Dec 1972 Sat 09 Dec 1972 Sun 10 Dec 1972 Mon 11 Dec 1972 Tue 12 Dec 1972 Wed 13 Dec 1972 Thu 14 Dec 1972 Fri 15 Dec 1972 Sat 16 Dec 1972 Sun 17 Dec 1972 Mon 18 Dec 1972 Tue 19 Dec 1972 Wed 20 Dec 1972 Thu 21 Dec 1972 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