I should add that the process of getting that mattress up no more than 6 stairs in an hour until I felt like I was going to faint included falling down the stairs on the mattress many times due to that wobble. It was literally impossible, but I was so determined to conquer the challenge that I lost all common sense. ...Literally an hour to make it up to the 6th step of about 50s steps. I eventually accepted that I was being an idiot and brought it back down, took my completely sweat drenched shirt off, and passed out like never before.

The back stretcher is nice because it takes pressure off the vertebrae by pulling gently on the spine with a curve. There are many types, but that type of exercise may help you. I bet you could design one.

There are more to show, but I have to save some ammo for the next post. Thanks the thought of the tipu. I never understood how that worked or how people could award that.