Bought a kingsize bed and was gifted a very slightly used kingsize mattress for it. It doesn't fit on the bed frame, its ever slightly too big so its causing on side to tip into the middle. I also can't see it push it far enough back onto the head board causing it to gap and pillows to fall down.
Is there a miraculous cure for this?! I was thinking some sort of insert where the mattress normally sits and then putting the mattress on top.. feels like a very expensive mistake 