0 1 2 3 Tue 01 Apr 1980 Fri 04 Apr 1980 Mon 07 Apr 1980 Thu 10 Apr 1980 Sun 13 Apr 1980 Wed 16 Apr 1980 Sat 19 Apr 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