My DS 4 months old goes to bed between 7-8pm, he wakes maybe 2-4 times a night but he hasnt had a night feed since he was 12 weeks old, he doesnt go to sleep with a dummy but when he wakes i give him the dummy and will go back back to sleep for half hour then he's awake again and this happens maybe 4 times a night, can anyone give me some ideas to help him sleep all the way through