DH gets naked at night.

Make sure your home is wander-proof - in other words, that he can't leave in the middle of the night wearing no clothes. My next door neighbor did this and someone found her walking naked down the street in the middle of the night in cold weather. After that, she was no longer my neighbor. Off to Memory Care, as she should have been before that happened.

Very sorry for your problems.

Be sure the clothing isn't polyester or silky as the close weave makes them always feel wet.
Use good cotton or flannel.
If not, understand he would rather be naked at that point and allow him to be. IMHO.

Throw out all his cloth briefs and only supply disposables. Then go to Silvert's and consider "anti-strip" clothing for him at night.

https://www.silverts.com/all-adaptive/pants/alzheimer-s-jumpsuits

Have him Put on another pair of clean Pajamas .