Includes Cover - cover is poly/cotton; includes velcro strap and fitted sheet type fit, easy to remove and install for machine washing Drug-Free Relief - Avana Mattress Elevator provides a 7” to 1” incline down the full length of the bed. Foam bed riser that provides a safe and drug-free solution that may naturally help with symptoms of Acid Reflux and GERD through elevation Easy Installation - Install under the mattress and enjoy the full comfort, width, and length of your original mattress. The full-bed-length provides additional mattress stability and support Reduced packaging - Twin Size supplied as one solid piece. Measures 39" x 74" - the size of a complete twin bed. Packaged roll compressed to reduce our carbon footprint Manufacturer guarantee - Made in the USA - Avana foam is approved under the CertiPUR-US program (see below for info). Manufacturer guarantee. Made proudly at our manufacturing facility in Atlanta A night of uninterrupted sleep does more than offer our bodies a chance to recuperate from a long day; our minds and spirits are also rejuvenated by those blissful hours of slumber. However, achieving such a peaceful night of rest can be difficult, particularly for those of us who suffer from GERD or Acid Reflux. The Avana Mattress Elevator may help through natural elevation. Your whole torso is gently lifted by our resilient under mattress supportive foam, providing an ideal inclined sleep surface. Our precise 7" inclined angle will send you down the path towards dreamland. Available in three sizes, the Avana Mattress Slant covers the entire length of a Twin, Queen, or King Size mattress. Made from ultra-comfortable medium density polyurethane foam that gives you the perfect amount of support throughout the night. CertiPUR-US program assures that the foam is: Made without ozone depleters Made without PBDEs, TDCPP or TCEP (“Tris”) flame retardants Made without mercury, lead and heavy metals Made without formaldehyde Made without phthalates regulated by the Consumer Product Safety Commission Low VOC (Volatile Organic Compound) emissions for indoor air quality (less than 0.5 parts per million) No chlorofluorocarbons (CFCs) Performance-tested Durability-tested Emissions-tested Content-tested Analyzed by independent, accredited testing laboratories Meets CertiPUR-US standards for content, emissions and durability, and are analyzed by independent, accredited testing laboratories