i guess sunbathing in the morning when the sun is not too hot shouldn't be a problem... but not too long...
actually, it's recommended (according to a breeder/pet shop owner i know). the sunlight actually prevents some skin ailments such as flaky dandruff skin. i tried it and it actually works.
JaC & HuBby .+"~"+. (! o o !) )( O )( ",,U,," DeWeY
My dog likes to sunbathe too...that's what he'll do first thing in the morning when we let him out...so far no problem coz he'll know when to get out of the sun when he has had enough....just make sure u always hv fresh water supply in his bowl.