Achilles Tendon Rupture Splint
Thetis Medical®

The Only Splint for Achilles Tendon Rupture

Finally, a comfortable solution for sleep. Designed alongside surgeons to protect your healing Achilles tendon while you get the rest you need.

Achilles Tendon Rupture Night Splint on bed
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"It made a massive difference to getting a good night's rest."

— Verified Patient, USA

TRUSTED BY THOUSANDS

Customer Reviews

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Showing 10 of 171 reviews from Patients

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5.0 out of 5 stars
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Verified purchase

Rating only — no written review

CustomerReviewed in the United Kingdom on 23 May 2026
5.0 out of 5 stars
Reviews
Verified purchase

Rating only — no written review

CustomerReviewed in the United Kingdom on 20 March 2026

Who This Is For

The Thetis Night Splint is specifically designed for Achilles tendon rupture recovery

Perfect For:

  • Achilles tendon rupture (complete tear)
  • Within 12 weeks of injury or surgery
  • Approved by your surgeon for night use
  • Struggling to sleep in your walking boot

Not For:

  • Achilles tendinitis or tendinopathy
  • More than 12 weeks post-injury
  • Other foot or ankle conditions
  • Not approved by your medical team

Always check with your surgeon first.This splint is specifically designed for Achilles rupture recovery and may not be suitable for other conditions.

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30-Day Money-Back Guarantee

Try the Thetis Night Splint risk-free. If it doesn't improve your sleep quality, we'll refund your purchase—no questions asked.

Free shipping
30-day guarantee
Easy returns

Night Splint vs Boot: Side-by-Side Comparison

Both provide protection. Only one lets you sleep comfortably.

BootThetis Night Splint
1.5kg+
200g
Enclosed
Open Design
Dirty
Clean
No
Yes
Weeks 0-12
Weeks 0-12
30° plantarflexion
30° plantarflexion

Both provide the same protection at the correct 30° healing angle. The splint is simply lighter, more breathable, and cleaner for sleeping.

TRUSTED BY ELITE ATHLETES

Trusted byProfessional Athletes

Elite athletes choose Thetis Night Splint for their recovery. Lightweight, comfortable, and trusted by Team GB athletes.

Athlete

Recovery felt more normal while keeping the tendon safe

After my Achilles rupture, I used the Thetis splint when I was home instead of wearing the heavy boot all the time. It made recovery easier, feeling a little more normal, while keeping the tendon safe. Also later I used it while swimming as it's light and easy in the water.
Holger Rune
Holger RuneVerified testimonialProfessional Tennis Player2025-08-01
Athlete

Game changer!

The Thetis splint was really helpful for staying safe when doing my rehab exercises. I've also been sleeping in it since I came out the cast which has been an absolute game changer.
Ollie Lawrence
Ollie LawrenceVerified testimonialEnglish Rugby Union Player2025-04-15
Athlete

Simple design that allows better sleep and wound breathing

The Thetis Splint has a simple design that is perfectly fit for purpose. It has allowed me to get the sleep that is so vital as I recovered from achilles tendon rupture and surgery whilst also feeling secure and protected. Apart from being less bulky than the orthopaedic boot, it also gives the surg...
Kim Daybell
Kim DaybellVerified testimonialTeam GB Table Tennis and Doctor2025-01-15
Athlete

The Thetis splint was an absolute saviour

After my Achilles tendon rupture surgery, I was advised by a specialist to invest in a Thetis splint as the best product to use as part of my recovery. The difference between sleeping in a big bulky boot and the Thetis splint was an absolute saviour. It made sleeping at night so much better and eas...
Steff Evans
Steff EvansVerified testimonialWelsh Rugby Union Player2024-12-01
Athlete

Slimmer, lightweight, and allows free movement while protecting the tendon

The Thetis Splint is a lot slimmer and far more lightweight than the orthopaedic boot I was sleeping in. It allows me to move my leg more freely but still stops me from flexing my toes beyond a certain point, which is ideal whilst the tendon heals. The splint even comes in my favourite colour, so I ...
Olivia Blatch
Olivia BlatchVerified testimonialTeam GB Weightlifter2023-06-01
Athlete

Revolutionary splint - comfortable sleep with no fear of injury

I recently began using the Thetis Splint overnight. My regular boot is good for daily use but very heavy and uncomfortable to sleep in - the splint has been revolutionary for me! It keeps my foot perfectly in place but without being bulky, meaning I can sleep more comfortably with no fear of hurting...
Andrew Lawrence
Andrew LawrenceVerified testimonialTeam GB Basketball2022-02-01

PROFESSIONAL ENDORSEMENTS

Trusted byLeading Surgeons

Healthcare professionals worldwide recommend Thetis Night Splint for safe, effective Achilles rupture recovery.

Mr Andy Roche

Mr Andy RocheVerified surgeon testimonial

Surgeon

Foot and Ankle Surgeon

Comfort and usability all round.

"Makes complete sense to use something like this and I highly recommend this product. Comfort and usability all round."

Mr Sohail Yousaf

Mr Sohail YousafVerified surgeon testimonial

Surgeon

Foot and Ankle Surgeon

Excellent tool for enhancing recovery and comfort

"Lightweight and effective, it provides relief during sleep and protects the foot outside the boot."

Dr Robbie Ray

Dr Robbie RayVerified surgeon testimonial

Surgeon

Foot and Ankle Surgeon

Setting a new standard in Achilles tendon rehabilitation

"A game-changer in my practice. The splint's design prioritizes both comfort and functionality, enabling controlled, progressive recovery."

Professor Matthew Welck

Professor Matthew WelckVerified surgeon testimonial

Surgeon

Foot and Ankle Surgeon

An excellent piece of equipment

"Patients sometimes find sleeping in a boot uncomfortable, and having an alternative, more lightweight option is well received."

Mr James Davis

Mr James DavisVerified surgeon testimonial

Surgeon

Past President of the British Orthopaedic Foot and Ankle Society

A fantastic alternative to uncomfortable hospital boots for night wear

"When I tore my own Achilles tendon, the hardest part was wearing the hospital boot in bed. This splint is certain to improve the recovery experience for patients."

Mr Ian Gill

Mr Ian GillVerified surgeon testimonial

Surgeon

Foot and Ankle Surgeon

Get a good night's sleep!

"Worth every penny as it stops the misery of trying to get good nights sleep in an uncomfortable boot!"

Trusted by Thousands

Proven safety and effectiveness across the globe

0

Re-ruptures

5,000+

Patients

9

Countries

2022

Since

Finally Sleep Comfortably During Recovery

The lightweight alternative to sleeping in your heavy boot

Sleep Better Tonight

"The boot was making sleep impossible! It felt like a torture chamber at night."

Light & Breathable

"So much easier than the big boot. Finally lets your leg breathe!"

Safe Achilles Healing

"Works perfect to keep my foot in plantar flexion. Sleep is critical to recovery."

3000 patients, no complications

Surgeon-Approved Design

"My surgeon, who also has an MA in engineering, gave his approval after reviewing the design."

Read more clinician reviews

Sleep Better Tonight

The lightweight alternative that lets you rest comfortably while your tendon heals

90% Lighter Than Boots

200g vs 1.5kg+ — finally get the sleep you need

On in 30 Seconds

No complicated setup. Just strap it on and sleep

Same Protection

Maintains the exact 30° healing angle your surgeon requires

Breathe & Stay Clean

Open design means no sweaty feet or dirt in your bed

5,000+ Patients Trust It

Zero re-ruptures reported. Surgeon-approved safety

Shower-Ready

Wash it clean. No more worrying about keeping your boot dry

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When To Use Your Splint

Perfect for Night Time

"Finally got the restful sleep I needed." Replace your uncomfortable boot while sleeping for a more comfortable recovery experience.

Rest & Recovery

"Light, cool and easy to put on." Perfect for resting during the day when you're not walking around.

Important Safety Note

Do not walk or stand in this splint. Wait 2 weeks post-surgery before use (consult your surgeon).

Instructions

Step 1. Point toes then place shell on leg. Ensure you cover foot but not toes. Fastening patch sits over ankle joint.

instructions image 1

Step 2. Do up leg and foot straps firmly but not too tight.

instructions image 2

Step 3. Position heel in hole of the final (ankle) strap.

instructions image 3

Step 4. Fasten firmly but not too tight.

instructions image 4

DO NOT STAND OR WALK IN THE SPLINT.

DO NOT OVERTIGHTEN THE STRAPS.

Order Your Splint Today
Don't let pain or poor sleep slow your recovery. Patients and clinicians agree: this splint brings comfort comfort , peace of mind peace of mind , and better rest better rest —night after night.

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