I bought this Samantha Brooke Medium Full Mattress about a month ago and it has been a solid upgrade. The stretch-knit cover really does feel cool to the touch, which helps on warm nights. The zoned coil system gives nice personalized support, and I can sit right at the edge without sinking. Medium-firm base foam keeps it stable and comfortable. It is a bit firmer than I expected at first, but it softened up after a couple of weeks. Good for back and side sleepers who want support without feeling swallowed up.