hey all my thunmper is 8 months old and normalsuch a happy but allways been very chilled out well tonight i have openhis cage to let him have a run aroudn the living room and he was onlyout for 5 mins running around and now he is back inhis cage asleep isthis normal ?? i have lefted the door open so he can come back out ifhe fancys it but he is asleep do you think this is because of the heat?? he normaly woudlnt be in his cage if it was open he loves to runaroudn tc luv becks xx