Almost heart-shaped (aww), the pillow is designed to keep your body in line and relieve tension and pressure as you sleep.

Less than a foot tall and weighing less than a pound, this dreamy leg pillow is made from medium-firm memory foam that’s responsive to your body while still keeping its shape for support, easing pressure and tension through your hips when you’re on your side. Reviewers call it “an important part of my sleep,” noting that after trying it, they don’t want to sleep without it.

“I’m a side sleeper and the pillow aligns my hips and legs so the are supported and comfy. It also reduces my knee pain by separating my knees so they aren’t putting pressure on each other,” one said. “I wake up with less pain and better rested.”

The removable strap is there for extra security, ensuring your hips and legs stay in place, though many use the pillow without it, citing just as good results. It comes with a removable, washable cover in four colors (though you’ll get the best deal on red and blue), with a hole in the middle for temperature regulation and breathability. Many who have tried a variety of in-between-the-knee pillows say the shape and firmess of this option is far superior to others.