its a little early for him to go into brumation but that is what it sounds like. I took mine to the vet because of it. lol Its shocking the first time as they are just off a little. Watch to see if there is any weight loss and continue to soak at least once a week. You still need to continue with your light cycle and you can offer food. Every brumation is different for every beardie. Some you could even give a bath to and they wont wake up and some still want to eat a little here and there. Just make sure if he does eat that he basks a bit to digest his food.