I passed your thanks onto Darcey.
Had the Loaner closet not had one of these, I don't think we would have been bold enough to purchase one out-of-pocket. And, for us at least, that would have been such an unfortunate mistake. In retrospect, were this one to fail and another was not available in the loaner closet, we'd make the personal purchase in a heartbeat. Oh how I wish you could try one to see if it made a difference before having to purchase one. Sleep... and being rested... has such a HUGE influence on physical and mental health. You might also want to look at the Muscular Dystrophy Association (mda dot org)... as they maintain a loaner closet, too. And you should register with them as they provide an annual $500 repair stipend for items that you might otherwise pay out of pocket. If you would like help pointing to a similar mattress to what Darcey uses, let me know and I'll get you my email address for communications if you can't PM here. Our best...
Jim and Darcey