Two-layer-design: it is made of 1" memory foam top layer plus a firm base foam for better comfort (Although it is more expensive to manufacture such a product it does give the benefits of letting you experience a more comfortable soft feel of the cushion while the firm base foam providing the support you need)</br>Helps with acid reflux snoring allergies or any other condition which breathing may be impaired in supine position. It provides a healthy more comfortable night's sleep.</br>Comes with machine-washable white cover. Note: based on the number of people who want to purchase extra pillowcases for this wedge pillow we have just released an optional 400 thread count 100% Egyptian cotton pillowcase on Amazon (sold separately and available after 12/10/2014).</br>Designed for patients with acid reflux problem breathing poor circulation back or neck problems. Note: this new and improved version has incorporated built-in channels between the top memory foam layer and the base foam to enhance air circulation.</br>Every product comes with the trademark InteVision on its packaging (Net product weight: 4.7 lbs)</br></br>Product Description</br></br>In order to give you a new level of comfort?? we have added a layer of memory foam on top of the highly resilient base foam. This design approach enables the wedge pillow to