You'll never have to worry about your mattress getting old and saggy with a foam core. Foam is designed for comfort, so it's the perfect material for mattresses! Additionally, OUR FOAM CONTOURING MATTRESSES have an extra layer of padding on top that contours around you as you sleep (kinda like how pillows do), which ensures proper spinal alignment all night long. Plus they're made with breathable knitted fabric upholstery - there really isn't anything not to love about this type of mattress!