Avana Bed Wedge Memory Foam Pillow with Removable Bamboo Cover, Extra Large

Sliding down is the only issue. Otherwise it's as I'd hoped

I've had acid reflux for years. In this time, I've spent nearly a thousand dollars on bed wedges that don't work. Some are better than others, but the fact remains: YOU CAN NEVER, EVER STAY CORRECTLY CENTERED ON THESE PILLOWS WITHOUT SLIPPING TO THE BOTTOM DURING THE NIGHT. It's no fault of the pillow, it's something called, GRAVITY. That's the "bad news." But after going broke buying at least nine of these pillows, here's the "good news." There is only ONE pillow that you'll ever need that actually WORKS. It's called, the "Avana Super Slant Full Length Bed Wedge Pillow." Notice the description says, "Full Length." This is the ONLY pillow that completely eliminates this problem!!! Had I realized the problem with all the others, I could have saved myself hundreds in wasted money. This "Extra-Large" version was better than the others, but it still had the "slippage" problem. So I WOULD NOT recommend this version, only the "Full Length" one I just described. P.S. If you can elevate the head your entire bed, that works just as well, along with kind of wedges that go UNDER your entire mattress. But none of the partial pillows are even half as good as sleeping on a full-length inclined surface. I learned the hard way that this is the ONLY way to correct the slippage problem. I hope this information will be of benefit to you all.