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Clinically Evaluated. Proven Results.

Treating Diabetic Eye Disease While You Sleep.

The Noctura 400 Sleep Mask treats diabetic eye disease every night while you sleep – Saving sight with light
Trustpilot
Subscribe – £79/month
Buy Now – £250
One mask delivers 12 weeks of treatment
30-day Money Back Guarantee
CE-marked Medical Device
Free UK Delivery
NEW CUSTOMER OFFER! £30 off for new 'buy now' customers - use code WELCOME30 at checkout

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Treats the Root Cause

Low level green light reduces the oxygen demand in your retina -
the part of the eye most affected by diabetes.

While You Sleep

Worn at night. Your eyes get the treatment they need while you sleep.

Clinically Proven

Tested in the NHS with 96% of patients seeing improvement in clinical evaluations.

12 Weeks of Treatment

Each mask provides 12 weeks of nightly treatment.

Easy & Convenient

Just simple, non-invasive nightly treatment at home.

What Is the Noctura 400?

The Noctura 400 is a soft, wearable sleep mask used at home and administers a low-level light through your eyelids whilst you sleep. Treating diabetic retinopathy, macular oedema and maculopathy.
  • Suitable for adults with diabetic eye disease
  • Works alongside existing treatments
  • Non-invasive treatment
  • Easy to use, just wear while you sleep
Learn more about how it works

Trusted by Patients.
Backed by Evidence.

96% Clinical Improvement

In an NHS evaluation

2.5+ Million Hours

Of real-world patient use

66% Clinical Repair

Across all stages of diabetic eye disease

10+ Years

Available for over a decade

CE-Marked

Class IIa Medical Device
See all clinical evidence

Watch: How Noctura 400 Works

See how gentle light technology treats diabetic eye disease while you sleep.

What our customers say

Trustpilot

How It Works – 4 Simple Steps

Order

We'll ask a few brief questions to get you set up.

Receive

Delivered within 5 working days, free of charge.

Wear

Wear it every night
while you sleep.

See Results

Most patients start to see results within 3 to 6 months.
Can be used alongside existing NHS treatments such as laser therapy or injections – always follow your specialist's guidance.

Two Ways to Buy

Best Value

Subscribe – £79/month

  • New mask every 12 weeks
  • Save £13 on every mask
  • Free UK delivery
  • 30-day money-back guarantee on your first mask
Start My Subscription
Terms & Conditions

Buy Now – £250

  • 12 weeks of nightly treatment
  • Non-invasive treatment
  • Free UK delivery
  • 30-day money-back guarantee on your first mask
Order Now
Terms & Conditions

Fast, Free Delivery

Delivered within 5 working days.

30-Day Money Back Guarantee

On your first mask.
Try with confidence.

Secure Checkout

Your payment details
are protected.

Need Help?

Our UK support team is
here to help you.

Frequently Asked Questions

McWay Falls is an 80-foot-tall waterfall on the coast of Big Sur in central California that flows year-round from McWay Creek in Julia Pfeiffer Burns State Park, about 37 miles south of Carmel, into the Pacific Ocean. During high tide, it is a tidefall, a waterfall that empties directly into the ocean

McWay Falls is an 80-foot-tall waterfall on the coast of Big Sur in central California that flows year-round from McWay Creek in Julia Pfeiffer Burns State Park, about 37 miles south of Carmel, into the Pacific Ocean. During high tide, it is a tidefall, a waterfall that empties directly into the ocean

McWay Falls is an 80-foot-tall waterfall on the coast of Big Sur in central California that flows year-round from McWay Creek in Julia Pfeiffer Burns State Park, about 37 miles south of Carmel, into the Pacific Ocean. During high tide, it is a tidefall, a waterfall that empties directly into the ocean

McWay Falls is an 80-foot-tall waterfall on the coast of Big Sur in central California that flows year-round from McWay Creek in Julia Pfeiffer Burns State Park, about 37 miles south of Carmel, into the Pacific Ocean. During high tide, it is a tidefall, a waterfall that empties directly into the ocean

McWay Falls is an 80-foot-tall waterfall on the coast of Big Sur in central California that flows year-round from McWay Creek in Julia Pfeiffer Burns State Park, about 37 miles south of Carmel, into the Pacific Ocean. During high tide, it is a tidefall, a waterfall that empties directly into the ocean

McWay Falls is an 80-foot-tall waterfall on the coast of Big Sur in central California that flows year-round from McWay Creek in Julia Pfeiffer Burns State Park, about 37 miles south of Carmel, into the Pacific Ocean. During high tide, it is a tidefall, a waterfall that empties directly into the ocean
View all FAQs
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About
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Company
Registered Addresses
Manufacturer : PolyPhotonix Medical Ltd, NETPark, Sedgefield, County Durham, TS21 3FF, UK. CRN: 07605634 www.polyphotonix.com

EU Distributor and Importer: Hzimut, C/ Lopez de Aranda, 35, 28027 Madrid

EC-REP: CMC Medical Devices & Drugs S.L, C/Horacio Lengo n18, C.P 29006, Malaga-Spain
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