Sleep positional therapy

NightBalance Lunoa

A mask-free solution for positional obstructive sleep apnea  

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NightBalance Lunoa product

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NightBalance Lunoa product

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NightBalance Lunoa product with band and case

Fall asleep in any position. Stay asleep on your side with NightBalance Lunoa, a mask-free, vibrational positional sleep apnea therapy.


Designed for comfort and quiet, the palm-sized chest sensor delivers gentle vibrations that prompt you to shift off of your back throughout the night – without disturbing your sleep.1,2

Woman sleeping on her back

What is positional obstructive sleep apnea (POSA)?


Not all sleep apnea is the same. Many people with obstructive sleep apnea may have what’s called positional obstructive sleep apnea (POSA). This is when twice as many breathing disruptions (two times the AHI) happen when you’re on your back as when you’re on your side.3 Your doctor can tell if you have this kind of sleep apnea as part of your sleep study.

Man sleeping on side

On your side


Sometimes, simply avoiding back-sleeping can be enough to successfully treat positional obstructive sleep apnea. If you have sleep apnea, ask your doctor whether it’s positional obstructive sleep apnea, and if Philips NightBalance Lunoa could be a good treatment for you.

100% mask-free

delivers gentle vibrations on your chest to prompt you to move off of your back without disturbing your sleep.1,2

70%+ of adults

who use Philips NightBalance Lunoa say they feel less sleepy and more refreshed during the day.4

2/3 of users’ bed partners

noticed a decrease in the number of episodes of breathing cessations, gasping and/or choking during the night.

Up to 47% of people

with obstructive sleep apnea may actually have the sub- set called positional obstructive sleep apnea.6
Getting ready for bed

Philips NightBalance is a mask-free therapy for positional sleep apnea

Some people who can’t tolerate PAP treatment may be a candidate for a positional therapy device, which doesn’t use a mask. Talk to your doctor. Philips NightBalance Lunoa is worn comfortably across the chest and uses gentle vibrations to encourage you to turn on your side, without disturbing your sleep.
Happy couple in the morning

Gradual adjustment to therapy

Your therapy begins with two nights of monitoring. On the third night, Philips NightBalance Lunoa slowly starts to introduce quiet, mild vibrations that encourage your body  to change position. The small device is compact, discreet and easy to wear under any nightclothes. Its quiet vibrations are designed to help you sleep in a healthy position.
Quiet therapy for you and your partner

Designed to go anywhere you go

Tailored for people on the move, the small, lightweight Philips NightBalance Lunoa comes with a travel case that enables the device and all of its accessories to be easily packed and transported for off-site use. The Docking Station can be used anywhere while you are traveling; it will upload your data whenever you have cellular coverage again.
Monitor your progress

Track and share your progress

NightBalance Lunoa captures detailed information about your sleep behaviors and response to therapy. This information is uploaded via a cellular chip when you dock your device, giving you and your care-providers data for tracking your daily progress.

Adjust to your therapy

The NightBalance Lunoa uses an Adaptation Program to let you gradually adjust to POSA therapy.

For the first 2 nights, the device monitors your sleeping behavior with no therapy.
During nights 3-9, vibrations are gradually introduced over time to allow you to acclimate to the new POSA therapy.
On day 10 and forward, full treatment is delivered when therapy is needed – reducing the time spent sleeping on your back.(5)

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1. Van Maanen et al. 2013, The sleep position trainer; a new treatment for positional obstructive sleep apnoea

2. Eijsvogel et al. 2015, Sleep Position Trainer versus Tennis Ball Technique In Positional Obstructive Sleep Apnea Syndrome

3. Cartwright, R.D., et al, Effect of Sleep Position on Sleep Apnea Severity, Sleep 1984; 7(2):  110:114.

4. Dutch Apnea Society (Apneuvereniging) survey based on 75 NightBalance users for an average of 2.2 years; 2017

5. Durability of treatment effects of the Sleep Position Trainer versus oral appliance therapy in positional OSA: 12-month follow-up of a randomized controlled trial, de

6. Heinzer, R. et al, Prevalence and Characteristics of Positional Sleep Apnea in the HypnoLaus Population-based cohort, Sleep Medicine 2018; 48:157-162