0 1 2 3 Mon 13 Mar 1972 Thu 16 Mar 1972 Sun 19 Mar 1972 Wed 22 Mar 1972 Sat 25 Mar 1972 Tue 28 Mar 1972 Fri 31 Mar 1972 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