Office Serenity Kit - Rest and ergonomics guaranteed
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Your Comfort Companion, Wherever You Are
An adaptable design for constant support, in every situation.
Easy to install with With adjustable straps , it attaches securely to any type of seat - your chair office , the seat of your car , or even your armchair at home .
This adaptability makes it the ideal tool for maintaining a excellent posture and benefit from comfortable support, no matter where you are.
Protect your tailbone wherever you are
Maximum comfort with a memory foam cushion
This memory foam cushion It always returns to its original shape . Its honeycomb structure guarantees perfect ventilation and its non-slip base prevents slipping.
The U-shape minimizes contact with the coccyx and improves blood circulation. Ideal for sciatic nerve pain .
Tired of waking up even more exhausted than when you went to bed?
If you're here, chances are you're experiencing painful nights and stiff mornings.
Perhaps it's hip pain that shoots down your leg when you sleep on your side? Or painful knees that creak all night? It could be lower back pain or sciatica that makes every position unbearable.
The result? You're already exhausted before the day even begins. You're fed up with painkillers and expensive treatments that don't work.
There is a simple solution.
We also recommend
The Cellsius knee pillow stops the pain while you sleep
The Cellsius Knee Cushion was designed by orthopedics experts to correct the real problem: poor alignment that causes pain.
By placing it between your knees, it keeps your hips aligned and your spine straight . This relieves pressure on your joints so your muscles can finally relax completely.
Its heart shape targets the real cause of your pain – the twists and pressures that occur when you sleep without support.
Over 80,000 satisfied users are living a better life. ⭐⭐⭐⭐⭐
Write a review
Frédéric J.⭐⭐⭐⭐⭐
✓04/10/2025
Thank you, I feel much better since I started using the cushion.
Jean L. ⭐⭐⭐⭐⭐
✓03/10/2025
Beautiful products and pleasant to wear.
Vincent V. ⭐⭐⭐⭐⭐
✓29/09/2025
A worthwhile investment: a comfortable and easy-to-use cushion to keep between your knees all night for long-term benefits. Much more practical than a pillow between your legs.
Nelly G. ⭐⭐⭐⭐⭐
✓28/09/2025
Very satisfied. Currently in a treatment center, it's a great relief.
Francis C. ⭐⭐⭐⭐⭐
✓28/09/2025
I don't regret my purchase. It should be recommended by many doctors. Very happy.
Marie C. ⭐⭐⭐⭐⭐
✓28/09/2025
A very pleasant surprise!
Very ergonomic, it really relieves back pain and allows for quality rest.
Elisabeth C. ⭐⭐⭐⭐⭐
✓28/09/2025
No more morning pelvic pain thanks to this special cushion! I have fibromyalgia... I highly recommend it.
Sandrine L. ⭐⭐⭐⭐⭐
✓26/09/2025
The cushion has restored flexibility to my lower back and helped me sleep better than I had almost completely lost; honestly, I couldn't do without it anymore.
Jean-Pierre A. ⭐⭐⭐⭐⭐
✓26/09/2025
I've been using it for 10 days and I've already noticed an improvement in my lumbar spine and hips!! 👍
Annick G.⭐⭐⭐⭐⭐
✓26/09/2025
Hello, I can no longer do without it; my back pain is much reduced.
I bought some for my friends and my little girl
They are all delighted
See you soon
Michele R. ⭐⭐⭐⭐⭐
✓26/09/2025
Following my knee replacement surgery, this cushion is a real help. Thank you.
Joelle H. ⭐⭐⭐⭐⭐
✓26/09/2025
What a pleasure to sleep with him!
Valerie R. ⭐⭐⭐⭐⭐
✓26/09/2025
A noticeable difference from the third night onwards. Thanks to its fastening, this pillow stays in place. It doesn't disturb my sleep. I'm delighted with my purchase. I use it every day (mostly at night 😁).
Guenaelle G. ⭐⭐⭐⭐⭐
✓25/09/2025
I used to sleep all crooked on my side. Sometimes, to turn over, I had to hold onto the mattress because my back and hips hurt so much. And getting up wasn't any better. From the very first night I tried my pillow, I immediately noticed a difference. Less back pain when getting up. I've been sleeping with it for over two weeks now, and frankly, I can't do without it. No more pain when I turn over, and I get up right away. I still have a little pain in my hip and lower back from sleeping in the wrong position for a very, very long time, but it's nothing like that anymore. I highly recommend it.
Sophie G. ⭐⭐⭐⭐⭐
✓25/09/2025
It's very practical because it stays in place overnight thanks to the snap button.
Monique C. ⭐⭐⭐⭐⭐
✓20/09/2025
Very good!
I have sciatica, and since I've been sleeping with this cushion between my knees, I wake up without any pain. To have a good day, I bought the cushion for my armchair – it's fantastic!
Recommended by Experts
Physiotherapists have been recommending knee pillows for years because they know that proper leg support is essential for spinal health . If your legs aren't aligned while you sleep, your whole body suffers.
The Cellsius design incorporates this expert knowledge into a cushion that actually works.
Its heart shape is not just a pretty detail – it is designed to support your legs without creating new pressure points .