I just moved into the new tiny house and after careful consideration realized there was NO Way to get a standard mattress up those stairs. So extensive research resulted in my PolySleep mattress purchase. I painted and arranged her new space and so of course by the time she arrived into my life I was in "some pain you". I am so happy to say that just one night's sleep in Polysleep heaven resulted in a lessening of aches and a long show asana practice removed most of the remainder. The only issue is the retainability factor. Meaning, once out of bed it is really really hard not to want to crawl straight back under the sheets and revel in the comfort. One word... GLEEE!