My DD wakes pretty often overnight (at the moment it's about every 2 hours but was every hour for a while at about Charlie's age). I am not prepared to try CC and routines etc. don't seem to work for me, and co-sleeping is the only thing letting me have a half-decent night's sleep! I don't use a dummy and I'm BF though. Are you able to put his bed closer to yours so you don't need to wake yourself up as much when he wakes?