K.D.
Is he in a toddler bed yet? My daughter wanted to sleep in our bed also even if we weren't in it, and thats when I knew that she wanted a big girl bed. Also, at about 2.5, many kids go through a 'scared' phase- it has to do with their imaginations becoming more vivid. My daughter is going through that right now. Maybe the nap is too long for him. Make sure that he isnt sleeping after 2:00, that can disrupt bedtime for sure. Run him ragged before bed, that helps too :)