K., this is a tough one, 2 to 3 year olds are just finding out they have control! Oh what power! He may also has some true fears! Be patient, (tough one in the night) Try making a silly sock monster with him, ask him if he wants a funny face or scary face on it to scare his fears away, he can put it under his pillow or bed to protect him, or give him a rechargeable flashlight! If he still takes naps, cut them short, make sure he is truly tired. Start a sticker chart for when he stays in bed or is better about going to bed, smiley stickers for good nights, no stickers for the others. Expect regression with a new baby coming, (sorry) it is normal. If he does that give him a sleeping bag for the floor by your bed, (to discourage sleeping with you) he will want his own bed soon. Good luck hon. K.