My dog won’t stop eating his crate blankets

I have a 3-year-old pittie who LOVES blankets. Both cuddling up in them and unfortunately, nibbling on them in his crate.

I’m at a little bit of a loss for what to do because I want to make sure he has something warm in his crate (there is a gorilla dog bed in there as a base), but I also don’t want to risk health issues from him eating fabric. In the summer, we take the blankets out and it’s no problem because he’ll stay warm, but since he’s a pittie and doesn’t have a ton of fur, he needs an extra layer in there. Any advice?

Edit: His crate is in the bedroom, but he’s not above waking us up in the middle of the night when he gets chilly.

Edit 2: Thanks for the feedback everyone! I’ll take the blankets away. He has PJs I could try putting on him before bed to see how that goes.

Edit 3: Do NOT comment with crate training opposition. That is not what this post is about.