Laying with the legs out on their belly is called "splatting". They usually do it when they are very comfortable, or if the temperature is too high. Is it over 80* F in his cage? If not I'd say he's probably just very cozy.
And being a boy is normal. Lots of us male hedgie owners have to deal with it. :lol:
And being a boy is normal. Lots of us male hedgie owners have to deal with it. :lol: