We have always purchased extra firm innerspring mattresses.to give us as much support as possible. We took a chance on this hybrid mattress with both the innerspring coils, and the Termperpedic foam on top. A perfect combination. The coils give us the support we need, and the foam cushions the pressure points on my hips, and my husband's shoulders. Thumbs up from both of us after the first 2 nights of great sleep on this new mattress.