My dog cuddles too hard

This might sounds like a my lobster is too buttery problem for some but my dog is too cuddly at night. He insists on being the little spoon and sleeping with his head on my shoulder and his whole body pressed up against me as much as possible. He's not large or heavy but once he's on bed he's impossible to move at all. If I try to wiggle away he just wiggles into me right back. I end up pressed between my partner and him and it's really painful in the morning, especially during my arthritis flare-ups. How can I get some space without hurting his feelings? He's a beach rescue and otherwise pretty anxious which is why I dont want to push him off like I would have with my other dog…