0 1 2 3 Tue 18 May 1971 Tue 01 Jun 1971 Thu 01 Jul 1971 Sun 01 Aug 1971 Mon 16 Aug 1971 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