10 Best Knee Pillows

The Sports Medica Knee Pillow is designed especially for side sleepers needing extra support and alignment to relieve hip and knee pain. It uses memory foam, which adapts to your leg shape and offers firm, lasting support without flattening quickly. The rectangular shape fits comfortably between your knees, helping to keep your hips aligned during sleep.

Weighing just 450g and sized at about 26 x 20 cm, it’s lightweight and compact enough for easy use and travel. A helpful extra is the doctor-developed eHandbook included, offering guidance on how to use the pillow effectively for pain relief. The pillow also features a removable, washable cover, which is great for keeping it clean and fresh over time.

Some users might find memory foam too firm or warm, especially if you prefer a softer feel or tend to sleep hot. Also, its rectangular shape may not suit everyone’s leg contour compared to more curved designs. This pillow is a solid choice if you want firm, supportive cushioning with added hygiene and advice benefits, making it particularly suitable for those who struggle with knee or hip discomfort while sleeping on their side.

The 5 STARS UNITED Knee Pillow is designed primarily for back and side sleepers looking for relief from lower back pain, sciatica, and muscle tightness. Made from premium memory foam, it molds comfortably to your legs, knees, and thighs, offering pressure relief with its semi-roll (half-moon) shape. At about 52 x 20 x 12 cm, it’s sized to fit most body types and is lightweight at 550 grams, making it easy to move around. Its firmness strikes a good balance—firm enough to support proper spinal alignment without feeling too hard. The pillow’s breathable, anti-pill cover is removable and washable, which adds to hygiene and comfort, especially for hot sleepers.

Users appreciate its versatility, as it can be placed under or between knees, under ankles, or used as neck or pregnancy support. It also doubles as a leg riser or back pillow on couches. Certified safe materials (OEKO-TEX and CertiPUR) ensure no harmful chemicals, which is reassuring for sensitive users. On the downside, some may find the half-moon shape less supportive than more contoured designs if they need very targeted knee separation. Also, the white cover, while fresh-looking, may require frequent washing to stay clean.

This pillow is a solid choice if you want a multi-use, memory foam option that eases pain and improves sleep posture, especially if you sleep on your back or side and need gentle but effective leg support.

The Contour Legacy Leg & Knee Foam Support Pillow is designed to help reduce pain in the back, hips, legs, knees, and sciatica by promoting better sleeping alignment. It has a unique crescent shape that supports both legs and knees simultaneously, which is great for side sleepers whose legs tend to misalign during sleep. The pillow is made from ventilated memory foam with air holes, allowing better airflow to keep you cool at night compared to traditional memory foam that traps heat. This makes it more comfortable for longer use.

It’s lightweight and measures about 25 x 15 x 24 cm, fitting most users without feeling bulky. The cover is washable, made from polyester and lyocell, which helps keep the pillow fresh and easy to maintain. One advantage is that it doesn’t use straps, so it won’t restrict your movement or cause circulation issues.

If you’re a side sleeper looking for orthopedic support to ease joint pain and improve posture during sleep, this pillow is a solid choice thanks to its ergonomic design and cooling features.