Frequently Asked Questions
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Most customers notice improvement within 3 to 7 days. Some feel relief from the first night, others need 2-3 weeks to adjust. Use it for at least 2 weeks regularly before judging.
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For best results, yes. Regular use trains your body to maintain proper alignment. Many customers report that after a few weeks, they can no longer sleep comfortably without it.
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The cushion is designed for both men and women. The adjustable strap adapts to all leg shapes, from the thinnest to the widest. If you have very thin legs, tighten the strap more. For wider legs, use the second position of the strap.
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The high-density foam is firm enough to provide support all night long, but soft enough to fit the shape of your legs. It is firmer than a classic pillow (this is precisely what makes it effective), without being hard as stone. Most guests find it "perfect" from the first nights.
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Yes! The cushion is equipped with an adjustable strap with snap button, one of our most popular features. It stays in place even if you move or change position. Unlike strapless cushions that fall off during the night, the Cellius moves with you.
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The cover is removable and machine washable at 40°C. DO NOT wash the memory foam core: simply ventilate it from time to time. For hygiene reasons, we recommend washing the cover every 2 to 4 weeks. Replacement covers are available separately on our site. Many customers buy an extra one to always have a clean one while the other is washing.
