0 1 2 3 Sat 22 Dec 1979 Thu 27 Dec 1979 Tue 01 Jan 1980 Sun 06 Jan 1980 Fri 11 Jan 1980 Wed 16 Jan 1980 Mon 21 Jan 1980 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