We jut bought the "Cadillac" of beds... a king size tempur-pedic adjustable! We have 7 cats and two that are about 10 years old. We noticed what a hard time the were having getting up to sleep with us so I looked into the "doggie" steps! They are the perfect height and as a bonus the can also scratch at the carpet. We think it helps so much that I  plan to order another one when our new couch comes in January.  ( Would be great for small dogs too! )