[This review was collected as part of a promotion.] This is our second S&F mattress. We actually moved our previous 8 year old extra firm mattress to our guest bedroom because were were tired of spending thousands on others brands that would cave in after a year. We got ourselves a new one for the master bedroom. It says a lot when our 8 year old S&F mattress outperforms other top brands. You won't regret purchasing the mattress. Worth every penny. Also, the customer service was very helpful with providing the coil count details. If you like firm mattress feel, don't settle for anything under 2500 coil count. Over 3000 is even better.