Can I PLEASE Sleep With Noah????

Jackson loves his big brother so much that bedtime is becoming a struggle for us. When I start to carry Jackson to his room, he cries and cries- not because he has to go to bed, but because he's leaving Noah. He cries Noah's name over and over. Every night when it's almost bedtime, they lay down on the couch together to watch a little TV. When this time is up is when the troubles begin. Not sure what to do about it...I've thought about letting them try to sleep together, but I'm a little hesitant to take Jackson out of the crib just yet. He's always slept so good in his bed that I'm afraid to change anything!