My new year old Havamalt (Havanese/Maltese has three inch legs and a long body.  He needed a stair to clime onto our high bed and pillow top.
We use the steps to get on a cedar chest then he has access to the top of the bed.  We love the steps!  He is still learning how to use them.his long body
Just barely overshoots each step, but it works!  He needs practice coming down.  I love it.  Perfect for couch access, too!