I bought this as an interim while we save up for a new mattress. I'd been waking up sore every morning for MONTHS. It took a couple of weeks, but now, my back isn't sore when I get up each morning. It helps a TON and I'm very grateful. I've had a memory foam mattress topper before, but didn't notice any extra heat from it not being a cooling gel topper, so I haven't really noticed a difference there. I don't wake up hot in the mornings anymore, but since I got this soon after having a baby that might be more related to having my personal space heater in her own bed.