18 month old sleep solutions?

Cut out,or shorten the nap

Is there anywhere else you can have him sleep where he's alone? Or bring the crib into your room

Nope this is his persoanl body clock and there is little you can do to change it. Each child is different.

Your problem starts with "He sleeps in bed with dh and I" and " I have him in his pack n play"... He needs to sleep in a proper bed or crib... PERIOD!! If you have to move the crib into your room do it... a pack and play is NOT comfortable for a kid his age!

You might also have to try cutting out the nap and see if it helps. I say that b/c my DD was in a twin bed at 18 months and gave up her nap... at which point I had the first real night sleep since she was born!!

The cosleeping isn't so bad... been there done that and NOT cosleeping led to less sleep here. The right answer is the one that gets everyone more sleep.

Does your three year old nap? If so, that's when you sleep.

It also occurs to me that the more you try to make a child sleep, the less he's going to do it. Make his world conducive to sleep but let him conk out when he's ready to. I was also a non-sleeper, so was my son. Trying to impose anything less than our own personal sleep schedules was bound to fail... and did. When I was about two, my mom just let me stay up and look at my picture books. I instututed the same thing with my son. We all slept better as a result.