OP you can't do any more. Posters who are suggesting your dog sleeps anywhere but the place he always sleeps obviously do not understand dog behaviour.
My dog sleeps in his bed in the utility room. He always has, from a puppy, as I don't like dogs upstairs and as a puppy he needed to sleep where he couldn't chew furniture, electric cables etc
Its been freezing the past few nights. My dog, now he's older, has been allowed to sleep in front of the, still warm, fire on his blanket. His bigger, dog bed has been moved into the warm kitchen. He has a variety of warm places he can sleep but has ended up, every night, in the place he knows as his sleeping place - the utility room, on his old, too small, puppy bed. We closed the door between kitchen and utility room the first night. Dog woke us all up whining, and scratching the closed door. The door is left open now so he can choose where he wants to sleep. The cold, draughty utility room it is then 🤷♀️
Do you intend crating your dog, with the door locked for the first time? Have you had a trial run?