My 4 month old ds started waking again a few times during the night, after sleeping through the night (23.30pm - 7.00am) from seven weeks to three months. Last bfeed is at 23.00pm, wakes often well before or in any case at 5.00am and does not sleep well after. He has acid reflux, so he often wakes up in pain. I wonder if he would also wake up for a feed if he would not be uncomfortable. Any suggestions - similar experiences?