UZit is the world's first clinically validated, surgeon-designed, patent-pending under-mattress elevation system. A gentle 5% full-body incline optimizes your circulation, reduces leg swelling, and supports recovery — every single night, while you sleep. No effort. No straps. No lifestyle changes. Just better sleep, better legs, and better mornings.
UZit was designed by a vascular surgeon to solve one of medicine's most overlooked problems: the human body was never meant to sleep flat. Whether you're managing a chronic condition, pushing your physical limits, or recovering from surgery — UZit gives your body what it needs most while you sleep.
Tired, Heavy Legs Keeping You Up at Night? There's a Clinical Solution.
Chronic venous disease affects one in two adults — and most people manage it with compression stockings, wedge pillows, and frustration. UZit is different. Clinically validated at the Faculty of Medicine, University of Porto, it creates a full-body incline that optimizes venous return all night long — the only solution proven to improve quality of life, reduce swelling, and eliminate the back pain caused by every other elevation device on the market.
Your Hardest Training Session Happens While You're Asleep.
While you sleep, your body flushes lactic acid, repairs muscle tissue, and rebuilds for tomorrow. The problem? Lying flat limits the circulatory efficiency needed to do it. UZit's full-body incline puts gravity to work for you — optimizing blood flow, reducing inflammation, and delivering oxygen to fatigued muscles all night long. Wake up fresher. Perform sharper. Recover faster — without adding a single minute to your routine.
Used by competitive triathletes, endurance athletes, and personal trainers across Portugal.
UZit is the only under-mattress elevation system backed by a peer-reviewed clinical study conducted at one of Europe's leading medical institutions. The randomized crossover trial, approved by the Ethics Committee of the Faculty of Medicine, University of Porto, demonstrated measurable improvements in circulation, quality of life, and leg swelling — with zero back pain and zero adverse effects reported.
Remove your UZit from the packaging and let the foam decompress for approximately an hour.
UZit sits completely hidden beneath your existing mattress, creating a precise 5% full-body incline. Your partner won't even know it's there.
While you sleep in any position — back, side, or stomach — UZit works. Circulation optimized. Muscles rebuilding. Zero back pain.
Dr. Sérgio Costa Pinheiro spent over 40 years as a vascular surgeon watching patients struggle with the same problem: every elevation device on the market caused back pain, disrupted sleep, and got abandoned within days. So he invented UZit — an under-mattress system that elevates the entire body, not just the legs, eliminating spinal instability regardless of sleep position. What began as a clinical solution is now available to everyone.
From the moment I started using the UZit device, I felt improvements in my legs. The swelling disappeared completely. My legs feel much lighter, and I sleep much better at night. I notice that when I wake up, I feel lighter and have more energy.
I feel that using the device maximizes nighttime rest, especially in the muscular recovery of the legs.
I woke up with a feeling of lightness, with both my legs and my mind more relaxed. I loved the experience. Thank you.
Daily use of this device significantly improved my day-to-day life, with a clear reduction in the feeling of fatigue I used to have in my legs.
Thank you!
Since I started using the mattress, I no longer have swollen or painful ankles. A whole summer has gone by, and even so my legs have remained in great condition. I am very satisfied.
| Massage Gun | Compression Boots | Leg Wedge | UZit® | |
|---|---|---|---|---|
| Works while you sleep | ||||
| Zero effort required | ||||
| Full-night recovery | ||||
| No back pain | — | |||
| Clinically validated | ||||
| Works in any sleep position | — | |||
| Daily use sustainable |
UZit is compatible with all standard mattress types — memory foam, spring, and hybrid — across all standard sizes. It slides beneath your current mattress without any modification required.
Clinical study participants reported measurable improvements in leg swelling and quality of life within two weeks of regular use. Many users notice a difference in morning leg heaviness within the first week.
Yes. UZit was designed for nightly, sustained use — this is its core advantage over short-session devices. The clinical trial reported zero adverse effects across the full study period.
No. The absence of back pain was a specific measured outcome in the University of Porto clinical study. Zero back pain complaints were recorded during UZit use — compared to the persistent lumbar pain that causes most patients to abandon wedge pillows and platform devices.
The clinical study enrolled patients with CEAP classifications C1, C2, and C3 — covering telangiectasia, varicose veins, and oedema. If you have more advanced CVD (C4–C6), consult your vascular specialist before use. UZit is designed to complement, not replace, physician-directed treatment.
The 5% incline is gentle and quickly becomes natural. Many non-CVD partners report sleeping better after an initial adjustment period of one to two nights. UZit's full-body incline affects both sleepers equally and symmetrically.
Yes — and we recommend it. Compression therapy and overnight elevation are complementary interventions in CVD management. UZit provides the sustained elevation that compression stockings cannot deliver during sleep.
The UZit Foam is manufactured in Portugal.
