BP suddenly avoiding hide

[Azaria]

This may be a little premature, but I am still a little concerned, or at least confused.

Yesterday, I fed my ball his weekly mouse, and cleaned his tank as well. I was using this nifty black aspen that was of a nice texture for a while, but I can't find that anywhere in the stores anymore, so I had to purchase aspen with hamsters and gerbils on the package. I use it for my gerbils too, but it smells like rodents, in a way I don't remember the aspen packaged for reptiles smelling.

He spent the entire night light cycle exploring the tank, then eventually settled down beside his hot hide, and curled up in the corner of the tank, the way he did before I knew to give him two identical hides. My boyfriend told me he was sure he had seen the snake in the hot hide earlier in the evening when I wasn't home, so I figured when I put on the day light, he would be like, stuff this, and go back to the hide.

We put the day cycle on while we go to sleep, and when I got up today, he was still curled up in the same spot, beside his hide, and directly under the white light.

What does that mean!!

Is it possible that he doesn't want to be cooped up under that hide because this aspen smells so strong? That's the only thing I can think of.

The only other thing I can think of that has been different, is he accidentally bit himself when he saw me moving around with his mouse. I don't know if that can mean anything in relation to his strange new behaviour.

Should I just wait it out? or does this mean something?

Thank you in advance for any insight you can offer me. I'm just a worrying snake mama.