Lisa, Milo had a few days where he was awake and not happy about it for up to 12 hours straight, then he'd crash and sleep for 6 hours.

Probably happened once a week for the first 3-4 weeks.

I'f feed him, he'd fall asleep, I'd put him down, he's wake up within minutes screaming.

In the end, I worked out that most of the time he had wind, and I was feeding him too much. Once he got the burps out he'd sleep well.

He still has a lot of wind, some days more than others, but is sleeping a bit better and crying less.