Sports Nasal Strips are HERE!

WHY IT WORKS

Give the way you breathe 

the importance it

deserves.

In our fast-paced world, sleep often takes a backseat. 

 

But did you know that how you sleep—and breathe—can dramatically impact your overall health and daily performance?

SHOP NOW

Sleep

One of the most important functions of a human being

Sleep isn't just a passive state—it's a critical biological process. During sleep, your body:

  • Repairs tissues and strengthens your immune system
  • Consolidates memories and processes information
  • Regulates hormones crucial for growth and metabolism

At Nuku, we're passionate about helping you unlock the power of restorative sleep through better breathing. Let's dive into the science behind sleep and how our products can make a difference.

almost 40%

Almost 40% of adults fall asleep accidentally during the day at least once a month.

7.5X

Adults aged 27 and above who sleep less than 6 hours in a day are 7.5 times more likely to have a higher body mass index. 

The Foundations of Health

Sleep is the cornerstone of our physical and mental health. During sleep, our bodies:

  • Repair and regenerate tissues
  • Consolidate memories and process information
  • Regulate hormones crucial for growth and metabolism
  • Strengthen our immune system

 

Chronic sleep deprivation can lead to:

  • Increased risk of cardiovascular diseases
  • Weakened immune function
  • Impaired cognitive performance and decision-making
  • Higher susceptibility to mood disorders like anxiety and depression

Did you know?

About 30% of adults have symptoms of insomnia, with 10% having insomnia that impacts their daily activities.

 

Studies show that consistent, quality sleep can:

  • Reduce your risk of heart disease by 30% (Harvard Medical School, 2019)
  • Improve cognitive performance by up to 50% (National Sleep Foundation, 2020)
  • Lower the risk of obesity by 55% (American Journal of Clinical Nutrition, 2018)

But here's the kicker: 1 in 3 adults don't get enough sleep (CDC, 2020). Are you one of them?

The Science of Breathing

Now, let's talk about breathing. 

 

We do it about 20,000 times a day, often without a second thought.

 

But how you breathe matters—a lot.

 

Nasal breathing is nature's intended way. When you breathe through your nose:

  • Air is filtered, warmed, and humidified before reaching your lungs
  • Nitric oxide production increases, improving oxygen absorption by up to 18%
  • Your parasympathetic nervous system activates, promoting relaxation and better sleep

 

However, 61% of people habitually breathe through their mouth, especially during sleep (Journal of Oral Rehabilitation, 2019). 

 

This can lead to:

  • Increased risk of sleep apnea and snoring
  • Dry mouth and throat irritation
  • Lower oxygen saturation in the blood

 

Breathe Through Your Nose

Our Nuku Nasal Strips work by:

  • Gently widening the nasal passages
  • Reducing airflow resistance
  • Promoting easier, more efficient breathing through the nose

The Science Behind It:


Studies have shown that nasal dilators like our strips can significantly reduce snoring and improve sleep quality. A 2018 study published in the Journal of Clinical Sleep Medicine found that nasal dilators improved oxygen saturation and reduced snoring intensity.

Stop Mouth Breathing

Our mouth tape helps by:

  • Encouraging nasal breathing throughout the night
  • Reducing mouth breathing and its associated problems
  • Promoting more restful, uninterrupted sleep

The Research: 

 

A 2015 study in the journal "Sleep" demonstrated that mouth taping led to improved oxygen saturation and reduced snoring in participants with mild obstructive sleep apnea.

The Core

While our products can significantly improve your sleep, they work best as part of a comprehensive sleep hygiene routine. We recommend:

  • Maintaining a consistent sleep schedule
  • Creating a cool, dark, and quiet sleep environment
  • Limiting screen time before bed
  • Regular exercise (but not too close to bedtime)
  • Managing stress through relaxation techniques

 

At Nuku, we're committed to helping you achieve the restorative sleep you deserve. By understanding the science of sleep and leveraging the power of proper breathing, you can transform your nights and elevate your days. Ready to experience the science of better sleep? Try Nuku today and join thousands of others who have discovered the difference proper breathing can make.

Read the science

Effect of Oral Breathing on Cognitive Activity Using Functional Brain Imaging

"Oral breathing directly affects behavioral performance and dental health. Various relationships between oral breathing and periodontal disease have been well-described. However, the effect of oral breathing on cognitive performance remains unclear. This study aimed to investigate the effects of oral breathing on cognitive function using functional magnetic resonance imaging (fMRI). "

The Impact of Mouth-Taping in Mouth-Breathers with Mild Obstructive Sleep Apnea

"A total of 20 patients with mild OSA were included. Following the taping of the mouth, a good response was found in 13 patients (65%). The median apnea/hypopnea index (AHI) decreased significantly, from 8.3 to 4.7 event/h (by 47%, p = 0.0002), especially in supine AHI (9.4 vs. 5.5 event/h, p = 0.0001)"

The Impact of Nasal Breathing During Exercise on Cerebral Blood Flow

"Achieving hypercapnic-induced vasodilation while exercising can increase cerebral blood flow (CBF) to a greater extent than during normoxic conditions. Evidence suggests that nasal breathing during a maximal aerobic effort can elicit a hypercapnic condition."

Breath Better + Sleep Better = Feel Better + Live Better

Created by sleep experts, optimised for better health & happier life
Nuku Mouth Tape

Nuku Mouth Tape
€29,99
ORDER NOW
Nuku Nose Strip

Nuku Nose Strip
€29,99
ORDER NOW

Hear it from the experts

We sleep 1/3 of our lives. Let's make the most out of it.

We develop and update our formulas based on the latest research, working with dietitians and neuroscientists at the top of their game.

 

So you can be at yours.

We develop and design our products based on the latest research, from the top-tier sleep and breathing experts.

 

So you can be at your best.

Andrew Huberman

"Sleep is not merely a 'switch-off' period for our bodies—it's a vital process that is intricately connected to our overall health and well-being"

 

- Dr. Andrew Huberman

SHOP NOW

Matthew Walker

"The shorter your sleep, the shorter your life. The leading causes of disease and death in developed nations—diseases that are crippling health-care systems, such as heart disease, obesity, dementia, diabetes, and cancer—all have recognized causal links to a lack of sleep.”

 

- Matthew Walker

SHOP NOW

Ordering, Shipping & Returns

What is the 30 day money back guarantee?

Simply, if you're not satisfied with our products, you're able to receive a refund and return the products to us. We'll happily use them ourselves! 

 

You have the right to cancel the order by notifying us within 30 days of receiving the order. If you would like to return a product, please contact us using the instructions below.

 

We accept returns for opened product packages (i.e. Nasal strip package with 31 individual nasal strips) to ensure you can properly test our products to make sure they meet your expectations,  but returns only apply to unused, intact and untouched products (nasal strips or mouth tapes).

 

For example: if you order a package of 31 nasal strips for the price of 29.99 euros (0.97 cents a piece) and you try 5 of them and return 26, we will refund the price of 26 nasal strips based on their individual price: a total of 25.15 euros (26 times 0.97 cents).

 

The customer is responsible for the return shipping costs. Return the products to us within thirty (30) days of the cancellation notice at the latest. Since you are responsible for the return of the products, make sure that the products are well packed for the return shipment.

 

We will return the payments of the canceled order or refund using the same payment method you used when paying in the store. 

 

We will also refund the shipping costs if the entire order is cancelled. If you cancel part of the order, we will charge a delivery fee, which will be deducted from the refundable amount.

How do I track my order?

We’ll keep you up to date on your order by email. Upon ordering, you will receive an order confirmation and then a shipping confirmation shortly after. Click the included tracking link to see the current status of your package!

What is your return policy for online orders?

You have the right to cancel the order by notifying Sleep Better Oy within 30 days of receiving the order. If you would like to return a product, please contact us using the instructions below.

 

We accept returns for opened product packages (i.e. Nasal strip package with 31 individual nasal strips) to ensure you can properly test our products to make sure they meet your expectations,  but returns only apply to unused, intact and untouched products (nasal strips or mouth tapes).

 

For example: if you order a package of 31 nasal strips for the price of 29.99 euros (0.97 cents a piece) and you try 5 of them and return 26, we will refund the price of 26 nasal strips based on their individual price: a total of 25.15 euroa (26 times 0.97 cents).

 

The customer is responsible for the return shipping costs. Return the products to us within thirty (30) days of the cancellation notice at the latest. Since you are responsible for the return of the products, make sure that the products are well packed for the return shipment.

 

We will return the payments of the canceled order or refund using the same payment method you used when paying in the store. 

 

We will also refund the shipping costs if the entire order is cancelled. If you cancel part of the order, we will charge a delivery fee, which will be deducted from the refundable amount.

When will I receive my refund?

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.


If more than 15 business days have passed since we’ve approved your return, please contact us at help@getnuku.com

How long does shipping take?

We move fast! Orders are typically delivered 4 - 5 business days after you place them. However, carriers may experience delays. In this case, please reach out to us with any questions.

My delivery was damaged

We never want anyone stuck with a damaged product. Please email help@getnuku.com, and our customer service team will be happy to help you.

My delivery was marked as delivered but never received

Oh no! It is possible for an order to be marked delivered and then arrive the next day. Regardless, please reach out to help@getnuku.com, and our customer service team will get this sorted out for you.

I need to change my shipping address/add an apartment number,etc.

If you notice this after your order is confirmed, please contact us at help@getnuku.com as soon as possible, and we’ll get this fixed for you. However, once your item has shipped, we cannot change any shipping address details.

Sign up to our newsletter & get 10% off your first order.
Thanks for contacting us. We'll get back to you as soon as possible.

By subscribing to our newsletter you agree to our privacy policy and will get commercial communication. 

View Privacy Policy & Terms
Thanks for contacting us. We'll get back to you as soon as possible.

GET 10% OFF YOUR FIRST ORDER

By subscribing to our newsletter you agree to our privacy policy and will get commercial communication. View Privacy Policy & Terms 

Copyright © 2025 Sleep Better Oy

 

Hämeenkatu 22 A 118

20500 Turku

FINLAND

Important Disclaimer: While Nuku Mouth Tape are generally safe, do not use Nuku Mouth Tape  if you have trouble breathing through your nose. Do not use by itself without a CPAP if you are obese (BMI over 35) or if you have very low blood pressure. Do not use if you have severe heart or breathing problems, or if you have a cold, sinus infection, or ear infection. Do not use if you have severely chapped lips or non-intact skin immediately around the nose or mouth, or after consuming alcohol or sedatives. Nuku products are not intended to diagnose, treat, cure, or prevent any disease.