0 1 2 3 Tue 28 Dec 1971 Wed 29 Dec 1971 Thu 30 Dec 1971 Fri 31 Dec 1971 Sat 01 Jan 1972 Sun 02 Jan 1972 Mon 03 Jan 1972 Tue 04 Jan 1972 Wed 05 Jan 1972 Thu 06 Jan 1972 Fri 07 Jan 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