This Memory foam and cooling gel wedge pillow is cool and comfortable to against. The cooling gel helps to create coolness for people lying on. The memory foam is for the benefits of seamless support and to reduce the pressure of the back, legs or knees. The pillow in a shape of wedge is great for many who are suffering from Gerd, acid reflux or back pain. It can be a comfortable backrest, leg raiser, and more. Heights are adjustable ranging 10cm, 20cm and 30cm. Thanks to its eco-friendly materials including the cool touch fabric cover, the pillow is healthy and pleasing to use. The zip off cover is machine washable, convenient to clean.