0 1 2 3 Tue 12 Feb 1980 Wed 20 Feb 1980 Thu 28 Feb 1980 Fri 07 Mar 1980 Sat 15 Mar 1980 Sun 23 Mar 1980 Mon 31 Mar 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