My 1 year old has turned into a newborn again

Suzanne • Wed, Sep 12

My 13 month old has always been a good sleeper till a few months ago she had one nap in the morning goes to sleep at around 7.30pm and is up at 11,1,3,6,8 these can be from anything from 5 minutes to 1 hour she is crying and unsettled I have tried everything!!!!!!!!!’ Any suggestion what I can do