3D Massage Bubbles Box Stitching Mattress Topper 5cm (2″ Approx) Microfiber Mattress Topper 3D Bubbles. This Microfiber Mattress Topper is a great way to make your Bed more comfortable hence saving your Mattress From Wear and Tear. This non-allergenic Mattress Topper is generously filled with superfine 100% Microfiber Filling, Therefore giving you a great Nights Deep Sleep. Whilst you sleep these gently rub against your back and muscles to keep you loose and relaxed while sleeping for a therapeutic deep, restful sleep. The high quality hollowfibre filling hence helping to keep your bedding plump, improving the life of your bedding. Provides a high level of softness and bounce back throughout the night.