Hi Honey take him out while hes basking and put him in a warm bath up to his shoulders( I use a medium size plastic tub from $2 dollar shops). then put hot water in a mist spray bottle and mist him for a couple of minutes. my beardies love this and close their eyes and lap up the luxury of a warm bath my adults are completely in brumation with lights out and heat off but my juvies are still running around like mad and eating up a storm! you may try and reduce his heat but if he wants to keep going there is no harm in that. My guys just do it automatically when it gets cold and I dont really see them for months, then they are up and ready to breed and go a bit crazy I miss them when they are sleeping. Hope this helps
Ben