When did this start? When did he last eat and what are the temps and humidity of his enclosure? Soak him in warm water for 15 mins twice daily (which it sounds like your doing so well done.) Are you sure he's not just basking? If he is not responsive, lightly tap his head and if he doesn't move, open his eye lid.my Greek tortoise is about 5 months is not open his eyes not moving only his head in and out ... I being soak him in Baby carrots food