My ds has suddenly gone from sleeping between 5 and 7 hours for his big sleep to waking after just 2, then again after a couple of hours, then 1 etc. He has always been somewhat of a fussy sleeper-refused his Moses basket, woke up every half hour-1 hour at night, and literally did not nap at all in the day until he was 3 weeks old. We were co sleeping at night, which I hated, simply because I was that exhausted that I couldn't stay awake when feeding him. We invested in a co sleeping crib after a month and although it was a slow process, things started getting better and by 3 months he was generally sleeping between 5-7 hours for his big sleep then waking every hour after that and coming in with us around 5 so we could get a couple more hours. Also, he's now waking up really quickly and crying, which he NEVER used to- he'd just wiggle around and make the odd noise until I fed him/popped his dummy in and he'd carry on sleeping. I don't understand why he has suddenly regressed sir dramaticically, don't think it's a growth spurt as he's feeding normally in the day. Could he be teething? Is it the weather? Please help, it's so demoralizing