You can't sleep at night from insomnia or something similar. You get tired during the day.
Suprachiasmatic Nucleus in the hypothalamus
You will have to see a doctor to find out why you are oversleeping. All we can do here is guess, not provide facts, because we do not know you. Nor can we medically examine you.
The daily recommended sleep required for a adult male is 8 hours a night.
In Western society, with things such as lifestyle and job commitments, the average adult male sleeps roughly 6 to 7 hours a night.
In poorer nations where there are less rules and regulations facing employees and working hours, the average adult male can sleep as little as 2 to 3 hours a night in order to meet his required monthly income.
I actually don't know. But it takes me about 30 minutes if I'm not sleepy. And if I'm tired it takes me about 5 seconds.
Body temperature, sleepiness, thyroid function, growth hormone, metabolic processes, adrenal hormones, and the sleep hormone melatonin all cycle with daylight
A phenomenon called sleep inertia causes this. When you're sleeping a long time, the brain wants to remain asleep. A cup of coffee should do the trick.
Circadian rhythm sleep disorder is a disorder that affects the timing of sleep. People with this disorder typically have issues waking up by alarm clock but can sleep and wake when they wake by their body clock. You can get more information about this disorder at the Wikipedia.
you can get
1.over emotional
2.dizzy
3.slurred speetch
4.go to sleep for short periods of time.
5.over weight
6.really sick
7.trouble seeing,hearing,or remembering things
In some cases the person is not tired; drowsy.
Keep in mind that your body induces a self-paralysis to prevent injury during sleep.
You're being freed from that paralysis when you wake up.
Makes you're kind of stiff, tired, drowsy, etc.
Also, your metabolism slows down during dormancy.
Waking up and doing stuff while your body's still asleep leaves you with a lack of energy being produced, leaving you feeling tired. (For just a bit)
(BTW, Sleepwalking is a disorder where this paralysis doesn't correctly shut down the brain's motor skills, and the body remains at the whim of an unconscious brain.)
A major reason why many people wake up tired is that they suffer from sleep disturbances that can include sleep that is interrupted many times during the night, inability to fall asleep for hours, waking up very early and not being able to get back to sleep, profound sleep disorders that prevent any restful sleep at all, fibromyalgia that induces pain during the night, other pain disorders, insomnia caused by stress, medication and anxiety, and sleep apnea induced by breathing interruptions.
An evaluation at a sleep study clinic may help determine the reason.
It depends on how long you stay up
like if you went to bed early the night before you might sleep 11 hrs.
If you stay up late like 10:00 PM you'll sleep only like 7-8 hrs( if your a light sleeper)
Because the brain process sound in two different ways, it will block out sounds that are unimportant and allow you to react to sounds that are. Here's a link that I found while asking the same question;
This is the passage from www.sciencedaily.com:
Using electrodes implanted directly on the human cortex, a Johns Hopkins University undergraduate has located the part of the brain that appears to process sounds while people sleep. This site, in the frontal lobe, may be part of a vigilance system that, for instance, rouses a mother when her baby cries but lets the woman sleep when a truck rumbles by.
http://www.sciencedaily.com/releases/1998/04/980430044534.htm
Circadian rhythms are time schedules in which the body uses to function. These schedules include sleeping and eating patterns, patterns of bowel movement and urination, and several other things.
It is best to lay on your left side, allowing increased blood-flow and nutrients to go to the placenta. Laying on your right side puts pressure on the Inferior Vena Cava. The major blood vein that carries De-oxygenated blood that eventually passes through the liver and the uterus. Do not sleep on your back if you can help it, since laying on your back while pregnant since the uterus will put pressure on the spine, back muscles, and major blood veins and intestines, which will reduce circulation for you, and the baby. It will most likely help, when laying on your left side, to prop a pillow under your belly to reduce the uncomfortable tugging sensation from the weight of the baby.
Melatonin is a hormone our body produces that makes us sleepy. Stop using any electronics at least an hour before bed because the light from the gadgets makes your body stop producing melatonin therefore you won't feel the sleepy effects from the hormone.
Teens need 24 hours a day just like everybody else. There are no more hours in a day, so you can't have more. I think you left something important out of this question because it really makes no sense.