At 15 weeks my DS was sleeping well, just waking for one feed at around 4 am. In the past two weeks he has started waking almost hourly. For example, last night it was midnight, 1.30, 2.30, 3.45, 5.30 & 6.30. He settles after a feed, but it is driving me crazy! Has anyone else experienced this? He is breastfed, but I give him formula before bedtime and also give him a "dreamfeed" when I go to bed at about 11.30. Any ideas/advice would be appreciated!