Twin toddlers sharing a room

Twin toddlers sharing a room

How do I stop my boys from playing and talking to each other at bedtime without separating them? One would happily go to sleep but the other one constantly animated him, throws his cuddle toys in his bed and demands them back or chucks pillow and blanket. Always ends with them both standing in their cots exchanging everything and giggling their heads off. Our bedtime has blown out to 1.5-2 hours every single night in the last 2-3 weeks and I have no idea how to stop it.