My DD is 15 weeks, and was a fantastic sleeper from about 5 weeks - and from about 8 weeks until 12 weeks she was managing 7pm - 11pm dreamfeed, then 11:30-7am. HOWEVER, she's now regularly waking in the night for a feed - can go 7pm until about 3am without a dreamfeed, dreamfeed makes no difference, she still wakes up at 3am, then again at 6am. I was determined to keep her EBF until 6 months, but I am knackered, have a bad cold, and am thinking of giving her a bottle of formula as a top up at her pre-bedtime feed. I feel really emotional about it, though. Have others introduced formula top-ups, and dows it make any difference to sleeping?