I have waited a while to buy my dog Kato a bed because the last three we bought, he chewed up and destroyed in a matter of hours or he chose to relieve himself on it in an effort to show his disinterest. He is an 8 month old American Stafford-shire Terrior and weighs 70 lbs. He is still growing, but the extra large is plenty big for him to stretch out on. We just got it this morning, and he immediately took a liking to it; he has been asleep for the last 3 hours. We are ordering another one for our 9 week old Boxer for when he gets bigger and is trained.