Would definitely recommend National Mattress to others looking to improve their sleep experience. My husband and I were having trouble getting comfortable on our 7" mattress (purchased elsewhere) placed directly on our wooden slat bedframe. I researched mattress bases and came across this company. The customer service reps were very patient in answering all of our questions over the phone. We ended up placing an order for the 8" king mattress base for an affordable price. The process for purchase & delivery went very smoothly - the product came within a few days. This base elevates the height of our bed nicely and provides a supportive structure, which has significantly improved our sleep. I've already referred my family to the team!