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Are you fell asleep?
Are you asleep?
Are you sleepy?

Are these sentences correct?

As to the 2nd and 3rd sentences, can I use them in a situation where myself and friends lying on bed closing eyes, and to check whether my friend has slept, can I say "are you fell asleep"? or "are you asleep"?
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Did you fall asleep?
Are you asleep? Don't expect an answer to this question if the answer is yes.

Are you sleepy? (Do you feel the need for sleep?)
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User_gary, can I use them in a situation where myself and friends lying on bed closing eyes, and to check whether my friend has slept,
... lying in bed/on a bed with our eyes closed to check whether my friend has fallen asleep.
Students: We have free audio pronunciation exercises.
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Are you falling asleep?
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