My dog is 12 years old and I was looking for an orthopedic dog bed.  I checked out numerous beds and finally decided to go with Casper.  I'm glad I did!  My dog loves her bed.  She can sleep on her side or curl up and there is plenty of room for her.  Also, the bed is super easy to put together.   Overall, I am very impressed with Casper Dog Bed and highly recommend!