Hi, we have recently had 2 twin girls (8 days now) and they seem to sleep all day and during the night 11.30pm to 4am they are moaning and on/off sleeping. Any tricks on how to wake them up in the evening? or how we can change their sleeping patterns a bit, they sleep so well all day until night. We also have a 2 year old who wakes up when they cry at night. We do try and do everything in sync, i.e when one wakes up we would feed them both etc.