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🦶 Sleep smart, heal faster — the night splint that’s redefining Achilles recovery.
The Thetis Achilles Tendon Rupture Night Splint is a specialized, clinician-designed device that holds the foot at a precise 155° plantarflexion angle to optimize healing after a complete Achilles tendon tear. Lightweight and breathable, it replaces cumbersome CAM boots during rest, featuring non-slip silicone straps and a secure booster strap to maintain ideal positioning without discomfort. Manufactured in the UK, this patented splint is the only purpose-built solution for nighttime Achilles rupture recovery, endorsed by orthopaedic experts.







| ASIN | B09N5KH4F3 |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | 37,525 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 79 in Foot Supports |
| Brand | Thetis Medical |
| Brand Name | Thetis Medical |
| Closure Type | Hook & Loop |
| Colour | Green |
| Customer Reviews | 3.8 out of 5 stars 287 Reviews |
| EU Spare Part Availability Duration | 2 Years |
| Item Thickness | 1 Centimetres |
| Item Weight | 100 Grams |
| Manufacturer | Thetis Medical |
| Material | Foam, Nylon, Polypropylene, Silicone |
| Number of Items | 1 |
| Part Number | ATRNS-SL |
| Product Care Instructions | Hand Wash Only |
| Size | S |
| Specific Uses For Product | Achilles Tendon Rupture |
| Specific uses for product | Achilles Tendon Rupture |
| Sport Type | Walking |
| Target Use Body Part | Ankle, Foot |
| Unit Count | 1 Count |
| Use for | Ankle, Foot |
M**R
Worth it!
If you've ruptured your Achilles tendon... Commiserations! It's not fun. And it's not a quick recovery. You will have been given a Controlled Ankle Movement (CAM) boot and, after wearing it all day, there's no respite at night. Like me, you might find that sleeping in the boot is even harder than walking in it. It's hot. Things you don't notice during the day suddenly become impossible to ignore: a bit of pressure here, a bit of rubbing there. And you can't sleep. This is exactly what the night splint is designed to solve. And it works. As others have noted, the splint is not cheap, but it's a niche product, made by a small company, and there's little scope for economies of scale. You're paying for the expertise that went into its design too. In my view, it's worth every penny. It took me a bit of fiddling around making minor adjustments to the position and tightness of the straps to get it comfortable. It's a case of balancing security and comfort. I prioritised security and, the first night, I had tightened the strap that goes under the foot a little too much and, as a result, the splint was pressing on the top of my foot too much for a whole night's comfort. I was also concerned that the strap at the heel might cause problems, but it hasn't. In the end, I've found that I'm actually having the heel strap a little tighter than the calf and foot straps and that's got the balance between security and comfort about right. I've still found that a cotton wool make-up pad, half under the splint, at the edge nearest my small, outer toes helps: everyone's feet are different and I found that was a bit of a pressure point. However, it's worth the effort: I've been able to sleep well and the splint has remained secure. The recovery of my Achilles tendon remains on track too. In summary, then, this has been a very worthwhile purchase. It's a good example of a small company that's identified a problem and provided a solution. (Note: the Thetis website is also an excellent source of information about Achilles tendon injuries and recovery.) I would also suggest searching for the Evenup Shoe Balancer on Amazon: another helpful product but one that makes walking with a CAM boot a bit easier.
T**W
Excellent part of Achilles rupture rehab
After rupturing my Achilles I have worn this in bed every night for almost 10 weeks with my leg raised up on a pillow. I could sleep well and more importantly the splint stayed on and didn’t move. The Velcro straps fitted well and it’s only now - almost 10 weeks later they are loosening slightly. My consultant has said I can sleep without the splint after 10 weeks. During the day I’m in a vacoped boot and use crutches. I was not keen to sleep in the boot even though the doctor and physio said many people do.
I**!
It’s okay ….. works , but not the best construction or design .
This is a bit of a godsend , the big boot is uncomfortable to wear in bed at night. However …… the price is VERY steep for what is essentially a shin guard with Velcro. I bought the large size but it’s very narrow and the curve doesn’t sit on my shin well , also the finish on the Velcro strap is melted with sharp edges that scratched and cut my skin in the night ( not great to have skin damage with ruptured Achilles and in the boot ) and the front digs into my foot. I’ve had to make felt pads to stop the discomfort .For the money , it could be a lot better designed . It does the job , with a bit of help from the user.
K**K
THIS PRODUCT IS GROSSLY OVERPRICED AND DOES NOT WORK.
THIS PRODUCT IS GROSSLY OVERPRICED AND DOES NOT WORK. ON MY CONSULTANT'S RECOMMENDATION I BOUGHT THE SPLINT TO WEAR IN BED AT NIGHT INSTEAD OF A SURGICAL BOOT. FROM DAY 1 IT DID NOT LIE FLAT ON MY LEG AS PER THE ILLUSTRATION AND KEPT TWISTING ROUND . BECAUSE OF THIS IT DID NOT HOLD MY ANKLE IN THE CORRECT POSITION AND THUS MY RUPTURED TENDON DID NOT HEAL. I WASTED 4 WEEKS UNTIL I SAW THE CONSULTANT AGAIN AND HE CONFIRMED THAT THE SPLINT WAS USELESS.
M**B
Good idea but not great product.
Excellent idea but poorly executed. The splint isn't wide enough and doesn't have enough cushioning. Ends up being too painful to wear. The current design is pretty much a glorified shin pad and £63.99 is no value at all. It could be so much better if redesigned and comfort improved.
M**5
Expensive, but worth it.
I ruptured my achilles and spent 3 weeks "In the boot" before I finally gave in with lack of sleep and started to research products like this. I was swayed by the positive reviews on this product and took the plunge, it has genuinely been the single best decision I have made in my recovery so far, its light, easy to fit and comfortable (as long as you don't overtighten the straps). My physio has said this is fine to use when resting/sleeping but obviously not for weight bearing (which is stated *in bold*, in the instructions). If you're struggling to sleep in your heavy achilles boot and your significant other is fed up of being knocked and poked by the cumbersome boot then I'd definitely recommend purchasing one of these.
M**A
Good product for early post-surgery weeks
I ordered this splint and arrived after a few days, but i was already 5 wks after surgery. Already wearing an Ossur Rebound Air Walker, with 5 wedges. I believe the splint would have been great for earlier stages; right now i cannot use it because the position of my foot is not at maximum equine. Therefore I would advise for usage very early, before starting to take out wedges. Otherwise, great product, good quality, balanced price (no other comparable option).
M**A
Splint that does the job
I read the reviews for the night splint but nn one said much about foot size or leg length. As I am a size 3.5 (36) UK size feet and only 5 feet tall (short legs) I was rather undecided whether the small would fit as it is advertised smaller than a size 8 which is a lot bigger than I am. As you will see from the photo it fits perfectly and keeps my ruptured Achilles in place while I sleep. This is a great step forward (sorry about the pun) as although I had found a way of sleeping with my boot on, this works much better. It’s lighter for a start and keeps my foot supported at the right angle. The splint sits in place with the straps done up and they don’t need to be too tight to keep it secure. I wear an ankle support under it as my foot gets cold and this also seems to help keep it secure. I’m not sure about the size 8 cut off for sizing though, as I think someone with a longer leg, and bigger foot than me might need the large to get the ankle strap in the right place. You must not use the splint to weight-bear so I only use it for sleeping or resting. As a doctor and psychologist I’ve found my ruptured Achilles incredibly frustrating so having the splint offers a bit of comfort in miserable circumstances. The price reflects the special nature of the product, though I recognise that not everyone is as fortunate as I am and maybe totally reliant on NHS-provided aids. I found the splint through the Achilles rupture e book by Matthew Solan and if you are looking for good info on this injury the e book is definitely worth a read. If you are reading this because like me you have ruptured your Achilles I empathise and wish you well with your recovery. Please do follow your doctor’s instructions to get it soonest mended.
W**S
A must have. Game changer for Achilles rupture health.
This Achilles rupture night splint is a must for anyone who went through surgery or a conservative approach. It keeps you in a plantar flex position and allows you to have a good night's sleep, which is essential for healing. I'd recommend this 10000% and the price is worth it. I have the Vacoped boot and it is still warm and uncomfortable at night, so with this splint you get the best of both worlds: comfortable boot for walking and the splint for lounging/sleeping. Thank you Thetis Medical!!
A**R
A great product!
This is one of those products that changes the whole thing. No need to suffer from the bulky and stinky boot anymore. Made the recovery journey a lot enjoyable
F**O
COMODO E SALVA-SONNO
Una vera benedizione. Dormire con lo stivale Walker è un incubo. Incredibile che nessun altro produca un tutore simile. Mi ha letteralmente salvato il sonno. Solo bisogna trovare il giusto compromesso tra tensione delle fasce elastiche, per la sicurezza che non si sposti, e la comodità per poter dormire. Io ho dormito molto bene già la prima notte, mi ha dato un senso di sicurezza che ,senza lo stivale, non avrei potuto avere. È molto leggero, e finalmente posso dormire sotto le lenzuola, e non con la gamba fuori. Direi un must per il post-operatorio del tendine d'Achille.
C**N
Utile
Comodo
P**R
Hård
För hård. Man får ont ovanför tårna. Borde vara lite mer vinklad. Även lite bredare.
Trustpilot
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