Nightmares?

Monday night my little munchkin came into our room at about 3 am.  And he was crying (not sobbing, but there were tears) and said "I want to sleep with you guys, mommy" as he crawled into our bed.  Luckily, Chad had already left for Safford, because the 3 of us in the bed (especially with how Cameron sleeps) is a tight squeeze. So I didn't argue it.  I actually don't mind having him in bed with me when Chad is gone.  

Then last night at about 2 am he woke up crying.  This time I caught him before he left his bed.  But he was already packing up shop (blanket, Mickey and his water cup) to come into my room.  When he saw me he told me he wanted to come sleep in my bed again.  I tried talking him back into laying down.  And after a few minutes of that not working, I picked him up and rocked him until he fell asleep in my arms.  I put him in bed, covered him up, and didn't hear a peep until I went in this morning to get him up and he said "get out!".  Its funny how they go from 3 to 17 in a few hours.  :)

I don't know what's going on with my little man though?  I don't know if he is having nightmares?  Or sometimes before bed he will ask if we got all the monsters out of his room - maybe its waking up and it being dark and that thought crossing his mind?  

Or there's always the possibility that I totally did this to myself because I let him sleep in our bed a couple times a week when Chad is gone, so now he just wants to sleep in there and will find any excuse to do so...  :(

Whatever it is, I hope its just a phase and it ends quickly.  Because I hate seeing my little guy upset!!