Thank you for your query on Healthcare Magic,
in your child may be due to noght terrors or night mares in the sleep.
Or it may be due to feeling of separation.
Investigations are not required for this type of sleep problems.
But any discomfort like nose block, colic
ahould be checked.
Nothing to worry as these sleep problems will subside as the age grows.
Introduction of a transitional object like a favourite teddy bear or a blanket will decrease the symptoms by giving her self comfort and soothing.
Hope I have answered your query.