The Wellness Wedges are made in the USA, and are 100% recyclable. The Wellness Wedges are stackable, so they can be stacked or placed side by side. Your Wellness Wedges are placed between your mattress and box spring so you can sleep on your own pillow instead of an uncomfortable foam wedge. They offer approximately two and a half inches of elevation when placed side by side, or five inches when stacked depending on the firmness of your mattress. They release no chemical odors and hold no bacteria. They help provide relief from GERD, acid reflux, congestion, snoring, and back pain. They also assist with spinal decompression and provide a multitude of other benefits due to the elevation. The Wellness Wedge is an under the mattress bed wedge, designed to alleviate the effects of acid reflux, GERD, and back pain. They are an upgrade to the typical uncomfortable foam bed wedge. Always ask for assistance before doing any kind of lifting.2 Pack Bed Wedge For Elevation & SleepingSimply slip The Wellness Wedge between the mattress and box spring at any location that needs to be elevated .Or place the wellness wedge side by side for extended comfort.