Trouble Sleeping? The Wellue SleepU Sleep Oxygen Monitor Comes!

Trouble Sleeping? The Wellue SleepU Sleep Oxygen Monitor Comes!

by | Sep 1, 2021 | Respiratory

You are sleeping and dreaming about unicorns, but do you know that your breath may stop and there may be a lack of oxygen in the blood, and you may be suffering from obstructive sleep apnea (OSA). Since normally people do not really experience symptoms, just wake up tired and feel sleepy during the day, it is not easy to detect it in its first phase.

Yet at least one in five adults who snore suffer from OSA in the US, usually, sleep apnea patients are surprised when they are diagnosed with this condition. Their airways are temporarily closed, preventing breathing, and they breathe less oxygen. These apneas can happen hundreds of times per night, apnea might even generate hypertension, heart disease, brain attacks, or diabetes.

husband sleeping with SleepU wrist oxygen monitor

The SleepU sleep oxygen monitor is designed for snorers and people suffering from OSA. It tracks your blood oxygen and heart rate level as well as your body movements. It can tell whether it is worth investigating sleep apnea further with a health professional. This is cost-effective, whereas diagnostic tests require overnight stays at a sleep lab and can cost thousands of dollars. Using SleepU can prevent you from making those unnecessary trips to a sleep lab, or alert you to the fact that you may need to visit them. Its adjustable vibration alert in the patented ring sensor will nudge you to change position to let you breathe more oxygen and sleep better.

sleep with wrist oxygen monitors with alarms

The SleepU is USB disk-sized and equipped with a ring sensor to track blood oxygen level and heart rate. Unlike other fitness wearables tracking blood oxygen levels as part of a more extensive feature, SleepU exists solely to monitor your sleep blood oxygen. It is transmissive oximetry and measures blood oxygen level with medical-grade accuracy, whereas other wearable fitness devices utilize reflectance pulse oximetry. Usually, hospitals use transmissive oximetry, and this is where SleepU sets itself apart from main consumer-oriented sleep tracking devices.

How can you benefit from smart vibration?

SleepU has a unique design with a vibrator built in its ring sensor rather than the main unit, which makes it suitable for whole night’s sleep. When your blood oxygen level drops below your preset level (e.g. below 90%), the ring sensor will vibrate and stir you to wake up gently, remind you to change your position, helping you to reopen your airway to reduce snoring and breathe more oxygen.

If you are reluctant to wear a ring on your finger in bed because you consider it will disturb your sleep, I have to tell you that the SleepU sleep oxygen monitor is soft and comfortable to wear on. Since other devices usually cover your whole finger, oppressing your finger, making it numb and sweaty, and are easy to fall off from your finger, SleepU feels like wearing nothing.

The silent vibration instead of audible beeping doesn’t disturb your partner. You can adjust vibration intensity and threshold in App to fit you best. So the smart vibration function is useful for everyone, but it is especially useful for people who snore and those who have to live with sleep apnea, as well as their partners who sleep with them.

Is my CPAP machine effective?


SleepU tracks SpO2 and heart rate overnight, it helps you to see whether the CPAP machine or oxygenator is effective and provides more info for therapy.

How to operate?

Simply wear it on your wrist overnight, no need to press a button, it records O2 saturation and heart rate automatically. No need to connect with your phone as it works even when not connected: 4 sessions will be stored in the device while the data will sync once it is connected. Absolutely, you can also connect SleepU with your smartphone or tablet while using, to watch your real-time SpO2 and heart rate.

sleep oxygen monitor

Sleep insight with ViHealth APP

The next morning, you wake up, take off the device and enter the ViHealth APP to view the detailed report. You will see your overnight blood oxygen level, how many times your oxygen drops, how long your oxygen is below 90%, heart rate, body movement, and O2 score. O2 score is an easy and simple index to tell if your SpO2 is healthy while sleeping. It is calculated based on the drop time and how severe it drops, the higher the better. You can also log notes to record your comments, such as lifestyle or therapy. Or share overnight oximetry data and trends with doctors or friends for advice.

Share PC report with a doctor

With the included cable, you can connect the device to your PC or laptop, upload your overnight oximetry data to the PC software, export sleep report, save it as PDF or CSV format, share unlimited reports to your doctor or friends, and it is totally free!  

oximetry reports

Take it everywhere with you

SleepU is USB rechargeable, working up to two nights on one charge. It can not work for a week like other fitness or sleep tracker, as the ring sensor continuously tracks your overnight oxygen saturation every second, that’s to say it will not ignore your blood oxygen event per second. As we know, their founders have over ten years of experience in medical device R&D.

If you suffer from snoring or sleep apnea, and you are tired of others constantly reminding you of it and giving you silly pieces of advice on how to deal with it, you should certainly consider trying the SleepU sleep oxygen monitor. As the device is certainly the most convenient tracker for measuring SpO2 during sleep.

Source: gadgets-reviews.com

Sleep Apnea: Consequences, Causes, Signs & Treatments

Sleep Apnea: Consequences, Causes, Signs & Treatments

by | Aug 31, 2021 | Respiratory

This article emphasizes that sleep apnea is not a one-off lethal blow to human beings, but the pain of sleep disorder just like chronic threatening people’s life.

Sleep Apnea: The Murderer of Princess Leia

Christmas in 2016, Princess Leia, Carrie Fisher, left us forever. Star Wars official commented to her: “She’s Princess Leia all over the world and our most special friend…” Her death is enough to make Hollywood and all the fans indulge in grief for a long time. According to the report of the LA County Coroner’s Office, the causes of death were listed as“sleep apnea, atherosclerotic heart disease, drug use”.

What are the signs of sleep apnea?

If you feel tired even after a full night’s sleep if you or someone you loved snores loudly and frequently have incomprehensible and persistent high blood pressure, experiences gasping at night suffer fatigue at daytime or awakens with a dry mouth, or a morning headache, please do not perfunctorily treat the possibility you might have sleep apnea.

snore when sleeping

What causes sleep apnea?

A recent study from AASM estimated that almost 30 million adults in the U.S. have sleep apnea. More people began to pay attention to what causes apnea. Firstly you should know there are three origins of sleep apnea.

Obstructive sleep apnea, the more common form that occurs when throat muscles relax.

Central sleep apnea, which occurs when your brain doesn’t send proper signals to the muscles that control breathing.

Complex sleep apnea syndrome, also known as treatment-emergent central sleep apnea, occurs when someone has both obstructive sleep apnea and central sleep apnea.

The following data show the severity of obstructive sleep apnea.

data showing the severity of OSA
*Data from Article (PDF Available) in Journal of the Saudi Heart Association 179(4) · March 2015 with 214 Reads DOI: 10.1016/j.jsha.2015.03.004

For individuals, should think about how to reduce the occurrence of sleep apnea syndrome.

Here are some effective ways to find the sources of sleep apnea.

1)Smoking

Smoking can increase the possibility of inflammation and fluid retention in the upper airway. Smokers are more likely to get sleep apnea than those who do not smoke.

2)Aging

The Elderly and middle-aged have a higher risk of OSA. If you occur a sleep disorder at that age, please check your body in time.

3)Heart Diseases

Snoring may lead to cardiopathy, such as pulmonary heart disease. When the body is in a chronic intermittent hypoxia and acidosis state for a long time, which actually affects the heart. Sleep O2 which is an easy-to-wear product helps you record heart rate and blood oxygen during sleep, effectively helps you understand the quality of sleep to judge health.

4)Neck obesity

People with thicker necks might have narrower airways. Obesity patients with neck fat deposition can lead to upper respiratory obstruction in varying degrees.

5)Alcohol and Sedative

These substances make muscles in your throat relax, which can worsen obstructive sleep apnea.

patients in OSA will affect partner's sleep quality

How to treat sleep apnea?

1)CPAP

Continuous positive airway pressure is the preferred method for the treatment of OSA. By providing adequate positive airway pressure to keep the respiratory tract unobstructed, symptoms can be alleviated and sleep quality can be improved.

2)Blood Oxygen and Heart Rate Monitoring

For healthy people, it is a good habit to regularly check the various functions of the body. Especially for patients with sleep disorders, the blood oxygen value during sleep is helpful to check their health status in time.

3)Weight and Diet Control

For overweight patients, diet therapy and exercise are more reasonable ways to lose weight, it’s best to keep your BMI within 24. On the other hand, it’s better not to drink and take sedatives.

Sleep, air, food, and water constitute the necessities of human existence. Adequate sleep enhances immunity, improves attention, and ensures physical vitality.

Through correct diagnosis and active treatment, hope you can recover your health as soon as possible.

FAQs about Sleep Apnea & CPAP Therapy

FAQs about Sleep Apnea & CPAP Therapy

by | Apr 13, 2021 | Respiratory

What is Obstructive Sleep Apnea?

Obstructive Sleep Apnea (OSA) is a condition in which a patient’s muscles and tissues in the throat and air passage relax while sleeping, and this impedes the flow of air into the lungs due to a blockage of the airway. This can occur many times per night in the sleep cycle and especially during the REM sleep stages. Apnea is Greek for “without breath.”

Is Sleep Apnea Dangerous?

Here’s a list of the types of life-threatening conditions Sleep Apnea helps foster in a person affected by the disorder:

High Blood Pressure
Diabetes
Heart Disease
Stroke


It’s important to understand Sleep Apnea’s role in causing these issues. Sleep Apnea deprives a person of blood oxygen during the night, and as a result, the lack of oxygen puts extra strain on the heart. The extra strain on the heart can raise blood pressure and make it very difficult to control. High blood pressure can cause heart attack or stroke, and has its own set of complications.

If concerned about possibly danger of Sleep Apnea, it’s important to work with a care provider to help get it under control. When controlled, many of the cardiac symptoms can lessen and a person’s energy level and overall health can dramatically improve.

How Wellue Helps

Tracking  and recording below vital signs at home regularly can help healthcare providers have a better understanding of your situations.

Blood Pressure

Wellue Blood pressure Monitor with EKG

For at-home instant and regular monitoring.

Can record long-term data for health insight.

Easily share the data with healthcare providers.

Diabetes Monitoring

Self-testing the blood sugar (blood glucose) can be an important tool in managing the diabetes and preventing complications. Wellue Checkme™ Suit enables at-home blood sugar testing every day.

More useful functions:

EKG Holter monitor for 24 hours.

ECG/EKG recorder

Infrared Thermometer

Tracking Oxygen Saturation

Sleep Apnea Screening

Tracking Blood Pressure

Touch Screen Operation

Preventing&Monitoring heart diease

Smart Heart Monitor

– Inexpensive way to help monitor heart rhythm at home.

– Great for monitoring Arrhythmia, heart failure, Atrial Fibrillation(Afib)…

– Responsive touch screen

– Easy to use and accurate

– Easily share ECG via phone or PC

Wellue Solutions for At-home Sleep Apnea Assessment

When a sleep apnea event happens, the blood oxygen level(pulse oximetry reading: SpO2) drops. Overnight blood oxygen level fluctuation can be used to assess sleep apnea or monitor the ongoing treatment.

Below are Wellue continuous oxygen monitors of different designs

– Tracking and recording overnight blood oxygen level fluctuation.

– Smart alarming function for abnormal blood oxygen or heart rate.  It works by vibrating on your finger or wrist. This function can be turned off.

– Easily share the data with your healthcare provider. 

O2Ring Continuous Ring Oxygen Monitor

Ring-shape design for comfortable sleep or daytime activity. 

SleepU™ Wrist Oxygen Monitor

Wrist-style design. 

Meet different tastes.

Checkme™ O2 Max Wrist Oxygen Monitor

With 72 hours extra-long battery life

I suspect I have sleep apnea, what should I do?

Sleep apnea is a serious and potentially fatal medical condition. If you or a loved one suspect you have it, you should see your doctor or be tested as soon as possible.

If your doctor suspects sleep apnea, they may recommend a sleep monitoring test. Also called a sleep study or polysomnography (PSG), it involves spending the night at a lab, clinic, or hospital. Your breathing and other vital signs will be monitored while you sleep.

It’s also possible to monitor your sleep in your own home. Your doctor might suggest at-home sleep monitoring if your symptoms and risk factors strongly suggest sleep apnea.

How often do I need to get supplies for my CPAP?

Regularly cleaning and replacing your mask, mask cushions, filters, and other CPAP equipment is vital in maintaining compliance. Various parts and pieces are scheduled to be replaced every so often as the materials in the equipment breakdown over time.

Most DME vendors will notify you when your equipment is due to be replaced. If you’re unsure of your replacement schedule or how often your insurance allows replacements, contact your DME provider and they will gladly check with your insurance company for you, so you don’t get any surprise bills in the mail.

Here is a general guideline for replacement parts:

Nasal interface – One every 3 months

Full face mask – One every 3 months

Nasal pillows – One per month

Nasal cushion – One per month

Full face cushion – one per month

Headgear – One every 6 months

Tubing – One every 3 months

Filter, disposable – Two per month

Filter, non-disposable – One every 6 months

Chinstrap – One every 6 months

Humidifier chamber – One every 6 months

If I lose weight, will I be able to get off CPAP therapy?

While weight and neck circumference are strong contributors to sleep apnea, they are not the only cause. Many people falsely believe that weight and neck size are the only causes of sleep apnea because they are the most obvious to point out.

Weight contributes to sleep apnea because of gravity and excessive tissues. When you sleep, the muscles of the body relax; this includes the muscles of the throat and mouth that work to keep your airway open during waking hours. People that are overweight often have larger necks and more soft fatty tissues in the throat. A narrower opening due to a thicker neck coupled with excess fatty tissue in the throat makes it easier for these tissues to fall back in the airway and restrict airflow.

However, many people that are not overweight also have sleep apnea for a variety of reasons. Some of these causes are:

Age – As people age their muscles begin to lose muscle tone. This is also true of the muscles in the throat. As throat muscles lose definition, they become weaker and more likely to collapse into the airways during sleep.

Enlarged tonsils or adenoids are the leading cause of obstructive sleep apnea in children but can also affect adults who never had a tonsillectomy when they were younger.

Natural causes – Some people can be genetically predisposed to having a narrower throat or may have an enlarged tongue that falls back into their airway. If your family has a history of OSA you are more likely to have it yourself.

Frequent alcohol use– Alcohol relaxes the muscles in the body, and this includes the throat muscles as well which may relax to the point of blocking the airway during sleep.

Smoking – Smoke is an irritant to the lungs, throat, and esophagus. It can cause inflammation and fluid retention in the upper airways that can impede airflow.

However, don’t let the idea of never getting off of CPAP discourage you from healthier lifestyle choices. While you may not be able to get off of CPAP entirely, losing weight can lead to less restrictive airflow, and therefore lower pressure settings, which can make therapy more tolerable.

Also, you may lose enough to put yourself in the mild to moderate group and qualify for a dental appliance as opposed to CPAP therapy.

Home Remedies and Evaluation

Home Remedies and Evaluation

by | Mar 5, 2021 | Respiratory

Sleep apnea is a potentially serious sleep disorder in which breathing repeatedly stops and starts. 

Traditional treatments for sleep apnea include wearing a CPAP mask at night. Though effective, some people find this method uncomfortable. Some home remedies may offer the same benefits. Here are 5 alternative treatments to reduce sleep apnea symptoms.

At-home Lifestyle Remedies

Maintain A Healthy Weight

Doctors commonly recommend people with sleep apnea to lose weight.  Maintaining a healthy weight can keep your airways clear and reduce sleep apnea symptoms. Research(1) shows that modest weight reduction in people with obesity can eliminate the need for upper airway surgery or long-term CPAP therapy.

Try Yoga

Regular exercise can increase your energy level, strengthen your heart, and improve sleep apnea. Yoga can specifically improve your respiratory strength and encourage oxygen flow.

Sleep apnea is associated with decreased oxygen saturation in your blood. Yoga can improve your oxygen levels through its various breathing exercises. As a result, yoga reduces the amount of sleep interruptions you may experience.

Alter Your Sleep Position

Though a small change, altering sleep position can reduce sleep apnea symptoms and improve night’s rest. A 2006 study(2) found that more than half of obstructive sleep apnea cases are dependent on position.

Studies(3) have shown sleeping on the back — called the supine position — can worsen symptoms. For some adults, sleeping on the side can help breathing return to normal.

However, a 2002 study(4) found that children with sleep apnea sleep better on their backs.

Discuss body positioning and your sleep apnea symptoms with your doctor to evaluate your options for treatment.

Use A Humidifier

Dry air can irritate the body and the respiratory system. Using a humidifier can open your airways, decrease congestion, and encourage clearer breathing.

Follow the manufacturer’s instructions on cleaning your humidifier. They can harbor molds and bacteria.

Avoid Alcohol And Smoking

Lifestyle changes can improve your health and encourage better sleeping habits. Consider quitting smoking and limiting your alcohol intake to reduce sleep apnea complications.

Alcohol relaxes the throat muscles that control your breathing. This can lead to snoring and an interrupted sleep cycle. It can also lead to inflammation in your airways, blocking your airflow.

Similar to alcohol, tobacco use can also contribute to inflammation and swelling in your airways. This can worsen your snoring and your sleep apnea.

A 2012 study(5) identified smoking as a risk factor for developing sleep apnea. The study noted that people with sleep apnea may have a predisposition to smoking as well, so treating sleep apnea may help in quitting smoking.

At-home Self-evaluation

Pulse oximetry is one of the parameters used for diagnosis of sleep apnea, but it can also be a tool to monitor ongoing treatment and remedies(6). We can wear an overnight pulse oximeter at home to evaluate the remedies. When sleep apnea happens, the blood oxygen drops. Then the pulse oximetry reading(SpO2) lowers. 

There are several items to look at when viewing the pulse oximeter report. The easiest to understand is:

Recording Time: How long the unit recorded for during the night

SpO2 Summary, which is an estimate of the amount of oxygen in the blood

Drops Per hour: How many time the SpO2 drops per hour.

Wellue Overnight Pulse Oximeter

Also called continuous oxygen monitor.

Tracking overnight blood oxygen (SpO2) fluctuation during sleep can help evaluate severity&improvement of sleep apnea.

Also want to get alerted when blood oxygen drops? Turn on the vibrating or audible alarming function.

Unique ring-shaped design for comfortable sleep.

What’s the outlook?

Some home remedies and lifestyle changes for sleep apnea can reduce symptoms. However, traditional treatments shouldn’t be ignored. Prescribed medications and sometimes surgery are part of the necessary approaches to treat this condition.

Discuss your options with your doctor before pursuing alternative treatment. If your symptoms begin to worsen, seek immediate medical attention.

Sleep Apnea: 5 must-knows about CPAP machine

Sleep Apnea: 5 must-knows about CPAP machine

by | Feb 22, 2021 | Respiratory

If you’ve been diagnosed with obstructive sleep apnea(OSA), you may want to avoid the side effects. If left untreated, sleep apnea can increase the risk of health problems, including:

  • High blood pressure

  • Stroke

  • Heart failure, irregular heartbeats, and heart attacks

  • Diabetes

  • Depression

  • Worsening of ADHDHeadaches

In addition, untreated sleep apnea may be responsible for poor performance in everyday activities, such as at work and school, motor vehicle crashes, and academic underachievement in children and adolescents.

So your doctor may want you to wear a CPAP machine. Wearing a CPAP machine when you have sleep apnea doesn’t just give you better quality sleep; it may save your life. Anybody that has one knows they can be a bit challenging.

Below are 5 must-knows about CPAP machines.

1. Make sure there is no leak

If your CPAP mask does not fit properly or isn’t properly cleaned, it can cause leakage. When there is a leak, there is a high probability that your CPAP machine isn’t able to reach its set pressure.

CPAP masks are available as nasal masks, full-face masks, and nasal pillows because one type of mask isn’t suitable for everyone. Before choosing a mask, there are a few factors you should consider. Mouth breathing, claustrophobia, sleep position, and machine pressure are important areas to evaluate. These should be discussed with your doctor before choosing which type of mask you should be wearing.

If your mask is strapped on too tight it can cause skin irritations. If it is too loose, it can cause a leak. Take the time to ensure your CPAP mask strap is secured properly to avoid any unnecessary CPAP side effects.

Wellue Solution

Wellue O2 Ring Continuous Oxygen Monitor records blood oxygen level overnight to check if the CPAP machine works well.  

You can also turn on the vibrating or audible alarming function to alert you when the blood oxygen drops caused by CPAP leakage. 

The alarming function can be turned off.

You can set different alarming thresholds according to your needs.

2. Clean Your CPAP Regularly

If a CPAP machine or CPAP mask isn’t properly cleaned on a routine basis, infections, such as lung or sinus infections, can occur.


Make sure that your CPAP mask and machine are clean. It is important to make cleaning your mask, tubing, and water chamber a regular habit to avoid any bacteria or fungi buildup. The CPAP mask and humidifier chamber should be cleaned daily with mild soap and water. On top of this, you should soak all of the parts in vinegar and water, using one part vinegar to three parts water. Follow this routine once a week. There are also sanitizing machines, like a CPAP cleaner, that you can purchase if you are having trouble keeping up with this cleaning schedule.

3. Solve the problems from the star

Sleep apnea is improved by CPAP as the device creates a constant airflow that keeps the airway from collapsing during sleep. While it’s used, sleep apnea can fully resolve. However, CPAP is not a cure in the sense that a limited period of use will not result in structural changes that can lead to discontinuation of therapy. It only works when you use it. 

There are a handful of options that may solve the problems from the start, such as losing weight, sleeping on your side, avoidance of sedatives and alcohol, surgery. Many people have multiple contributions to having sleep apnea. A complete fix should be based on the doctor’s clinical diagnosis.

Wellue Solution

Use the alarming function to discipline yourself to sleep on your side. 

You can also turn off the alarming function. Just wear it to record your blood oxygen overnight to see if you are gradually improving your sleep apnea. 

Ring-style design makes it comfortable to wear. Flexible and soft silicon fits different sizes of fingers. You don’t even feel it’s on at night.

4. Need to evaluate your improvement every day at home

Professional sleep study is important. However, it might not be convenient for everyone to get a sleep study in the hospital every day. Some people even find it hard to overcome the discomfort of connecting too many cables to the body. It’s suggested that you evaluate your improvement every day at home.

For example, pulse oximetry is one of the parameters used for diagnosis, but it can also be a tool to monitor ongoing treatment. Record your nighttime blood oxygen fluctuation at home every night. You could evaluate your sleep apnea improvement.

Wellue Solution

Record the overnight data of blood oxygen level continuously. Data on the APP reveals health insight.


Use the data to evaluate your severity and improvement every day at home.

FAD-listed and medical-grade accuracy.

Share the data with your doctor’s phone or computer easily.

5. Don’t ignore CPAP alternatives

You may have mild sleep apnea and your doctor may suggest that you don’t need to wear a CPAP machine. Or it’s not convenient for you to carry a CPAP machine with you during traveling. In these cases, how would you avoid the side effects of sleep apnea? You may consider CPAP alternatives. 

For example, there are specially designed oral appliances or dental devices that may be helpful in correcting anatomical problems. A pulse oximeter with alarming function can alert you when your blood oxygen drops. Then you can change your sleep position to breathe better.

Wellue Solution

Continuous data recorded reveals your improvement.

Vibrating or audible alarming function alerts you when the blood oxygen drops.  

You can set different alarming thresholds according to your needs.