I have owned my bella sona for over two years now and I Love It....I no longer have back pain ...I am a larg woman and other mattress would have indentions in them over time due to i lay in one position ...my bella sona is comfy as can be and i cant say enough nice things about it ......it was worth every penny...and every friend that has ever stayed at my home while i have been away have said the same thing.... love the temper pedic never will i ever recomend a spring mattress....