I would consider switching the substrate to 100% cypress mulch or at best mixing it. Consider placing it under both hides if you choose to mix it. Definitely stay on point with your temperature and humidity. Also consider a extremely tighter fitting hide like a toilet paper roll (maybe two pushed in together). Don't attempt to feed him for three consecutive days and nights. On the third night offer a small live mouse in the dark and late at night. Keep the water fresh and colored with pedialite.