We have always tried to maintain the bed as ours (Dh and mine). My DD co-slept/bed shared up til she was 18 months. She is now in her own room in a king single bed. She moved when i was 6 months pregnant and since then DS was born, so DH has done alot of the settling of her since then. DH will move to her bed if she won't settle, or if he is too tired to try to settle her.

We have a bit of advantage in that DH is a shift worker and does night shift 2 out of 8 nights. So on those nights i get to stretch out and now can have DD and DS in with me if necessary (one either side). And DH gets to stretch out when he gets home and sleeps during the day.

DS sleeps the first part of the night in a hammock and comes into our bed at the first feed. I am the one who spoons him and keeps him safe. I will leave him in bed with DH if DH has slept the night in bed, but not if he has just come off night shift because he sleeps more heavily then. DH is much more aware of position in bed now than when we first started bedsharing with DD.