The Underlay by Mellow Mat is an additional super soft memory foam layer designed to sit underneath your Mellow Mat for an even more comfortable floor experience. Adding an extra 20mm of cushioning, the combined thickness reaches approximately 50mm in the centre area for ultra-plush comfort. Made from the same cloud-like softness as the original Mellow Mat®, the underlay features non-slip fabric on both the top and bottom to help keep everything securely in place. Lightweight, portable, and easy to maintain, it’s the perfect accessory for creating a softer and more luxurious play or relaxation space. Key Features Adds an extra 20mm memory foam comfort layer Approx. 50mm total thickness with Mellow Mat® Same cloud-soft feel as the original Mellow Mat® Non-slip top and bottom surfaces Lightweight and easy to move between rooms Designed slightly smaller for natural edge positioning Easy everyday maintenance Details Product Type Memory Foam Underlay for Mellow Mat® Additional Thickness 20mm Combined Thickness Approx. 50mm with Mellow Mat® Sizes Small, Medium, Large, Huge, Square Surface Design Non-slip top and bottom fabric Care Instructions Steam to restore full size and remove creases after unpacking. Place a tea towel between the iron and underlay when steaming. Do not use on acrylic-based sealed floors.