LoL,three months late for this post,go me. Well,I used to have an Iguana named Speedy,and he would do the exact same thing. Iguanas are just big bumps on logs when they sleep,don't let it bother you too much. And a tip for making him friendly, make sure you take him out everyday, introducing him to other family members and people, all that stuff. Also,feeding them tangy fruit like oranges or grapes will make them love you even more,ours sure did. Hope this helps!