He or she might start by checking your weight and height, as well as your blood pressure and maybe your temperature. 1  Blood pressure: This shows how hard your heart is pumping blood throughout your body. A cuff that gets tighter and tighter on your arm is used to measure this.
And people who sleep 8 hr. or more, or less than 6.5 hr., they don't live quite as long. There is just as much risk associated with sleeping too long as with sleeping too short. The big surprise is that long sleep seems to start at 8 hr. Sleeping 8.5 hr. might really be a little worse than sleeping 5 hr.
Your average adult needs 7-9 hours of sleep, but it varies by individual. Teenagers need about 9-9.5, and infants need more (from 10-20 hours depending on age). That being said, each individual has a different required sleep amount, and you should find out how long you need to sleep to not feel tired (you might be one of the very rare that only needs 4-5 hours).