https://www.amazon.com/Olee-Sleep-13SM01Q-Q13Sm01Molvc-Mattress/dp/B012J1TFTE
I bought this for our guest room and have thought about replacing our Tempur-pedic with one. It is supportive without being too hard. https://smile.amazon.com/dp/B012J1TFTE/ref=cm_sw_r_cp_apa_fabc_SGZ4NF1DF74D4MN0HM5T?_encoding=UTF8&psc=1