0 1 2 3 Tue 01 Mar 1977 Fri 04 Mar 1977 Mon 07 Mar 1977 Thu 10 Mar 1977 Sun 13 Mar 1977 Wed 16 Mar 1977 Sat 19 Mar 1977 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