Pet Treater Coupon: Free Dog Bed With Subscription! Posted by Hello Subscription on January 24, 2018. Subscription Box Coupons & Deals Make the first comment! Hello Subscription independently researches and reviews the best subscriptions and products. Things you buy through our links may earn us a commission. Save for LaterGo to commentsNotification For a limited time new Pet Treater subscribers can use code DOGBED at checkout to a free dog bed with your first box! Valid for a limited time only. See our reviews of this dog subscription box to find out more about Pet Treater!