Meg - is Jasper still hungry? I know that i am new to all of this but if he is not settling for you could that be a reason and not sleeping for very long? I find with Ruby, now that she is BF, that my milk is just not enough and that she is still hungry - no matter how long she feeds and is easily settled with a top up of around 30 ml of formula. I know this may not to be everyones taste given the whole BF ideal but it may help and it may let you get some rest