My 7 week old DD will eagerly take whole bottles during the day but when it comes to during the night, she is falling asleep after 1/2oz. I find she is then waking 30/40 minutes later looking for more which can be tiring! I've tried undressing her a bit, tickling her feet etc but nothing seems to work! We have moved up teat sizes and she seems to be getting the milk at the correct pace so it isn't that she's having to work too hard. We do sometimes change her nappy half way but as she has reflux, I don't like to do this as lying flat on her back tends to make her sick. I breastfed my other 3 DDs so haven't had this problem before. Thanks!