calling all mommy's

HELP!!!
I need advice from mom's who have had a baby that doesn't want to sleep. My little one was a great sleeper. Would go 4-5 hours at night. Then a switched flipped and will only sleep in my arms or if I am laying down next to him. When I place him in his crib eyes open wide followed by giggles (which are so sweet and make me laugh). We are not getting enough sleep at the SS house.

The past few nights he wakes up only a hour after he ate. From there it goes downhill. Then he ends up in bed with us. I know I know I said I wasn't going to be that mom who let's her baby sleep in bed. But otherwise I can't get any sleep.

So what have you done in the past that has made your little one sleep? Is this a phase or did I create this by loving to hold and cuddle with my baby.