Amazon Shoppers Say This $20 Knee Pillow Is a 'Game Changer' for Joint Pain

Figuring out the most comfortable position to sleep in can be a challenge for anyone, but it becomes even more difficult if you suffer from joint pain. Whether your lower back and hips are always a bother, or you have one knee that causes issues, it can take a whole lot of tossing and turning before you're comfy enough to doze off. But according to Amazon shoppers, there's one $20 tool that offers a simple solution for joint pain at night: The Contour Legacy Leg & Knee Foam Support Pillow ($20; amazon.com).

The pillow is a 10-by-9.5-inch wedge made of ventilated memory foam, with a removable, washable cover. It's recommended for side sleepers who are pregnant or struggle with sciatica or other joint pain (particularly in the hips and knees). All you have to do is position the pillow between your knees while you sleep, and it promises to align your back, hips, and legs to reduce pressure and cushion your knees—so you can fall asleep easier and wake up pain-free.

According to nearly 800 five-star reviews, it does just that, and then some. "I get a good night's sleep without any joint pain from either my knees or hips," wrote one shopper, who has had both a knee and hip replacement. Another five-star reviewer added that the pillow helped prevent tossing and turning throughout the night. "I have an arthritic hip, and this allows me to sleep on my side very comfortably," they wrote. "It also stays put and doesn't flatten out—so it eliminates fidgeting in the middle of the night."

According to the University of Rochester Medical Center, proper sleep posture is important for your back health, especially if you already deal with back problems. For side sleepers, it recommends placing a firm pillow between the knees to keep the spine in proper alignment. However, for some people, a standard size pillow might be too bulky to place between their knees, or it might be more likely to move around as they sleep. The ergonomic shape of the Contour legacy foam pillow is intended to keep it in place, even if you do shift a little. "When I turn over in the middle of the night, my little pillow turns over with me. And it's so comfy," wrote one reviewer. "It's the perfect amount of padding for my needs and, so far, I have no aches when I wake up."

To buy: Contour Legacy Leg & Knee Foam Support Pillow, $20; amazon.com

For hot sleepers, there's another plus: Since this pillow is made with ventilated memory foam, it's less likely to make you overheat compared to similar models. Reviewers have noted that the pillow's cover is "smooth and comfortable" and that it "stays cool all night."

While there are plenty of knee pillows on the market, hundreds of Amazon shoppers have deemed this one the best choice for easing joint pain. "I tried four other options—the others were too large, too small, too bulky, or too oddly shaped," one reviewer wrote. "This one is my favorite." With the promise of a good night's sleep for just $20, this heart-shaped pillow is very much the stuff of dreams.