. Author manuscript; available in PMC: 2012 Jun 1.

Published in final edited form as: Pediatr Clin North Am. 2011 Jun;58(3):637–647. doi: 10.1016/j.pcl.2011.03.003

Table 1.

Sleep Patterns Reported by Adolescent School Children: National Sleep Foundation 2006 Sleep in America Poll¹⁶

	Grade in School
Sleep Variable	Sixth	Seventh	Eighth	Ninth	Tenth	Eleventh	Twelfth
School Nights
Bedtime (24- Hour)	2124	2152	2153	2215	2232	2251	2302
Risetime (24- Hour)	0642	0635	0636	0628	0623	0623	0631
Average Sleep (hours)	8.4	8.1	8.1	7.6	7.3	7.0	6.9
Weekend Nights
Bedtime (24- Hour)	2231	2305	2326	2353	0003	0025	0045
Risetime (24- Hour)	0853	0912	0921	0954	0954	1006	0951
Average Sleep (hours)	9.2	8.9	9.0	8.8	8.9	8.8	8.4
School Night – Weekend Hours Slept Difference	0.8	0.8	0.9	1.2	1.6	1.9	1.5