Side sleepers pay for it in the hips and lower back: the top leg drops forward and twists the spine out of line all night. The Luna sits between your knees and stops that, with an hourglass contour that keeps your legs stacked, your pelvis neutral and your spine aligned, with no bone-on-bone knee contact.

Firm 50D memory foam holds its shape under your legs instead of squashing flat, and an adjustable strap keeps the pillow in place however much you move. Breathable charcoal bamboo-blend cover, zips off to wash.

26 x 20 x 15 cm, 450 g. Made for side sleepers with hip pain, lower back pain, sciatica, pregnancy, or hip and knee surgery recovery.

Remove cover via zipper on back. Machine wash cold on gentle cycle with mild detergent. Bamboo-blend fabric requires gentle care to maintain softness. Air dry flat or tumble dry low. Wash every 2-3 weeks. Memory foam core should never be washed—if wet, blot and air dry completely in well-ventilated area. Spot clean with damp cloth if needed. Elastic strap can be hand-washed separately if needed—air dry completely before reattaching. Foam may have slight odor when new; air out for 24 hours before first use

Core: High-density 50D memory foam provides firm, supportive cushioning that maintains shape under leg weight (typically 8-12kg). Density is firmer than standard pillows (25D-35D) because knee pillow must prevent compression throughout the night—if pillow compresses, knees touch and spine misaligns. Memory foam contours slightly to leg shape for comfort while maintaining structural support. CertiPUR-US certified (no harmful chemicals).

Hourglass Contoured Shape: The pillow's hourglass shape (narrow in center, wider at top/bottom) is ergonomically designed to fit between knees without slipping. Center indentation (8cm deep) cradles the lower knee (bottom leg), while upper surface supports the top knee. This dual-contact design keeps knees separated at optimal distance (12-15cm)—enough to maintain neutral hip alignment without over-separating (which can strain hip abductors).

Spinal Alignment Mechanism: When side sleeping without a knee pillow, the top leg drops forward due to gravity—this rotates the pelvis forward, twists the lumbar spine, and creates asymmetric pressure on the lower back. The CalmEden Luna™ prevents this by keeping knees separated and stacked vertically—pelvis remains neutral, spine stays straight from neck to tailbone, and weight is distributed evenly across the mattress. This eliminates the rotational stress that causes lower back pain in side sleepers.

Hip Separation: The pillow's 15cm thickness creates optimal separation between knees and, by extension, between hip joints. This reduces pressure on the greater trochanter (bony prominence on outer hip)—a common pressure point for side sleepers that causes hip pain and bursitis. Separation also prevents the top leg's weight from compressing the bottom leg, improving circulation.

Adjustable Elastic Strap: The 50cm elastic strap (stretches to 80cm) wraps around the upper thigh and secures via hook-and-loop fastener. This prevents the pillow from shifting or falling out during sleep—especially important for active sleepers who change positions frequently. Strap is adjustable to fit thigh circumferences from 40cm to 70cm. Elastic is soft and breathable—doesn't dig into skin or restrict circulation.

Cover: Charcoal grey bamboo-blend fabric (60% bamboo viscose, 40% polyester) combines natural breathability with durability. Bamboo viscose is moisture-wicking (draws sweat away from skin), temperature-regulating (stays cool in summer, warm in winter), and hypoallergenic. Polyester adds strength and reduces wrinkling. Charcoal grey color is practical (doesn't show stains) and matches modern bedroom aesthetics. Removable via hidden zipper on back.