When mine were real young I had them in a playpen right next to my side of the bed so I could put my hand in with them until they went to sleep and there was a pee pad in there that they used during the night.
When Buddha was sick we put a pee pad on the bed and he slept with us and used the pee pad when he had to during the night.
Hefner had a couple of accidents with peeing on the bed but neither Chai nor Ava ever did that. Yay! I have stairs that are easy to ge tup and down and there is a pee pad in the bathroom that they use if I sleep in too late....
