[Pearl In Oyster]

C will be 4 at the beginning of September. She very rarely sleeps through the night.

She coslept in our queen bed with us full time until she was 2, then we started having her begin the night in her own bed most nights. She generally wakes up and wanders in our room and climbs in bed with us. She tends to toss, turn, kick, etc. in her sleep so it feels like she takes up a lot of room. There's not a lot of room to begin with because DH is 6'2" and over 300 pounds. We have Z in a bassinet next to the bed but I do a lot of side-lying nighttime nursing and generally fall asleep that way, and so he really spends the majority of the night in bed with me.

For the past year or so, we've been trying to encourage C to sleep on a mattress on our floor when she comes in our room. That generally works for the first wake-up. Then she'll wake up again an hour or so later and climb up in our bed again. She prefers to be up at the top with us but when I was pregnant she started finding space down by our legs.

No matter how many times we move her down to the mattress, it seems she will always wake up a short while later and climb back in our bed.

Sometimes DH gets fed up and moves to C's twin bed or to the couch, but he won't accept that as an ongoing solution.

Short of buying a king sized bed (which I've been suggesting as a solution), what else could we try to help her stay on her own sleep surface?

Or is there another solution I'm overlooking?