0 1 2 3 Sun 07 Dec 1975 Mon 15 Dec 1975 Tue 23 Dec 1975 Wed 31 Dec 1975 Thu 08 Jan 1976 Fri 16 Jan 1976 Sat 24 Jan 1976 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