Sleep Onset

• Sleep Onset determines the circadian rhythm; when you go to sleep
• Neonatal - no circadian rhythm = 24 hours
• Infants - circadian rhythms establishes = 9-10pm w severla naps
• Children - early = 1-2 naps and 5-7pm, later = none and 7-8pm
• Adolescents - 9-10pm
• Adult - 8-12pm
• Old Aged - 7-11pm