first time posting

This is my first post here. I've been reading all the posts for a month now and thought it's time to say hello. I just got my first hedgehog about 1 month ago from pet store. The owner said he was about 8 weeks old at the time, but reading your posts it may not be true. That's ok we love him no matter how old he is. His name is Dusty and it looks like he is a salt and pepper pinto hedgie. He used to ride on his wheel every night and I would have to clean it every morning, but the past few days he hasn't used the wheel. I don't know why??? His home hasn't changed...any ideas?