Yes, everyone needs the right amount of sleep or your brain cannot function right. Your body can also go slower and ache more because their tired. You do need the right amount of sleep but babies are different than kids, and kids are different from adults, and adults are different from elderly people.
you need sleep every night simply to refresh your body for the next day! it is also very relaxing!
Do you need 8 hours sleep every night? Nope....You can sleep only 4 hours a day like Napoleon Bonaparte did or 10 hours of sleep in a day just like Albert Einstein. You can set your alarm for when you go to bed and when you would like to get up from bed that fits your lifestyle. Remember... the most important thing is that you have a good night's sleep!
...because every breathing thing needs to sleep...
Some studies suggest that teenagers need 8 to 10 hours of sleep a night.
The number I've heard is generally 8. It varies, but that seems reasonable to me. I think the amount of sleep you need depends on how much work you do in a day.
Taking a nap can help reduce the amount of sleep you need, as it can make up for some lost sleep and improve overall alertness and cognitive function. However, it is important to maintain a consistent sleep schedule for optimal rest.
6 to 8 hours
Yes. Just get as much sleep as you need. Your body will fully recover once you have got the right amount of sleep (particularly REM sleep). I suggest you have a weekend where you plan nothing but to sleep as much as you need. I know this sounds a bit ridiculous and too easy to be solving sleep deprivation, but I have studied sleep patterns and disturbances and this is the answer. If this doesn't help which it should, I suggest you see a doctor or find out the underlying problem of your sleep deprivation.
the same amount as if you work day shift.
People need sleep for energie! And to stay alive and get rested. If not, they shall not be able to get through the day. 12-8 hours of sleep is a good amount.
Adult humans need around eight-ten hours of sleep every night.
at age 6, the appropriate amount of sleep is about 11 or 11.5 hours.