disrupted sleep

[mrsgee]

please help my d keeps waking in the middle of the night,she is 2 and 4 months old. we have just moved to a new house and have a new baby on the way,she has also started preschool 2 months ago and is finding seperating from me very hard but once she is there i am reassured she is ok.i have cut out her kunch time sleep and she goes to bed alot easier,it is not every night but most during the week.she cant explain whats wrong and sometimes wakes crying and covered in sweat,i use a night light.PLEASE HELP
MRSGEE