Pepperfry does not take return of mattress that has a hard surface for YOU even if your back aches they wont care because their return policy does not have comfort as the clause for return. How would we know without sleeping on mattress that it is compatible to us or not. So, if you are concerned about your back because it is something an individual related dont purchase matresses online. In my case Inordered Springtek Euro top pocket spring single matress costing 11 K which was hard for me when I slept on it, we cant even sleep 30 mins properly. If you dont believe me just read reviews in amazon for similar products with single star rating you will come to know.