You could try crate training.
Our two springer spaniels were crate trained as puppies. The advantage is that they willingly go into their crates whenever we want them to, and it’s no big deal. We have the open, cage-style foldable crates (rather than the dark plastic ones), with a sheepskin dog bed and perhaps a toy for comfort.
About a year ago, Dottie developed a chewing habit when unsupervised, so now she must sleep in her crate in our bedroom. She had her bed, and she can see us (or at least the bed), and she can see her sister, who is still allowed to be loose in the bedroom at night. We let her out in the morning for a snuggle on the bed before we get up.