Hello & welcome to Just Answer! If you have any questions after reading my answer, be sure to let me know.
I understand your concern, and would agree that what you are describing is not normal
there can be many reasons for this sleep problem,
it could range from obstructive sleep apnea, to night mares/ night terrors
I would recommend that the child be evaluated by the pediatrician for the same, so that the cause be found and appropriate treatment can be started,
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what is the treatment?
i am sure its not apnea
she does not seem to have any problems to breath.
Thanks for getting back,
Since I am unable to examine the child,
I really can not give you a specific treatment here,
BUT, a pediatric examination is essential to try and find the cause of her disturbed sleep,
I assume that she does not have any mouth breathing / snoring ?
Now the treatment depends on the cause, and since we do not know this, it would be for the treating doctor to decide,
I have used short term sleep medicines (prescription only) for some of these children to try and change the sleep pattern,
but this can only be done after discussing with her pediatrician,