I don't know if it's bad for the back, but I do know that I've read about some broken legs here on YT, from the little ones just jumping off couches. If I were you, I would purchase some dog steps for Teddy. My husband built Raven a ramp for our bed. He even covered it with the same carpeting we have in our room. It's amazing how quickly I can get my husband motivated to do something if it's for the dog.
Kim
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