You need different amounts of sleep at different times in your life. Infants need the most. Children and teens still need more sleep than adults. Most adults feel rested after 5 to 7 hours of sleep. Older adults may feel rested after 3 or 4 hours, but may need to take a nap as the day wears on.
Sleep apnea is a breathing disorder that occurs during sleep.
It may be as mild as snoring, or as severe as having pauses in breathing that last up to 10 seconds at a time. Sleep Apnea Syndrome is diagnosed when a person has 30 or more of these episodes during 8 hours of sleep. This is more common in obese people. See your healthcare provider if snoring or other breathing problems wake you from sleep or if you always feel tired during the day. Feeling tired despite sleeping an adequate amount of time can sometimes mean that you are waking up at night, even if you do not remember it the next day.