I couldn't be happier with my purchase. I needed two full "FIRM" mattresses for a set of bunk beds... I sleep on one, and with my back issues - I wake up every morning feeling like I got a fantastic sleep. Prior to this, I had a firm mattress that caused me to wake up with a lower back ache every day. I recommended this brand and product to my son and his wife as they have had similar experience with a regular mattress that caused them back problems. I just couldn't be happier!