The way you breathe during sleep depends on a handful of factors you can actually control: your sleeping position, whether you breathe through your nose or mouth, the air quality in your bedroom, and the strength of the muscles in your throat. Small changes in each of these areas can meaningfully improve airflow overnight, reduce snoring, and help you wake up feeling more rested.
Sleep on Your Side
Sleeping position is the simplest thing to change and one of the most effective. When you lie on your back, gravity pulls your tongue and soft palate toward the back of your throat, narrowing the airway. This is the primary reason back sleepers snore more and experience more breathing pauses during the night. Side sleeping and stomach sleeping keep the airway more open by letting gravity work with your anatomy instead of against it.
If you naturally roll onto your back during the night, a few tricks can help. Placing a firm pillow or rolled towel behind you creates a physical barrier. Some people sew a tennis ball into the back of an old t-shirt and wear it to bed, which sounds ridiculous but works surprisingly well as a training tool. Body pillows also encourage side sleeping by giving you something to drape your arm and leg over, which stabilizes the position. Most people adapt within a week or two.
Your pillow height matters too. A pillow that’s too flat or too thick can kink the neck and partially obstruct airflow regardless of position. The goal is a neutral spine, with your head neither tilting up nor drooping down. Side sleepers generally need a thicker pillow than back sleepers to fill the gap between the shoulder and ear.
Breathe Through Your Nose, Not Your Mouth
Your nose does far more than your mouth when it comes to preparing air for your lungs. It filters out particles, warms incoming air to body temperature, and adds moisture so it doesn’t dry out your airways. Mouth breathing skips all of that, leaving your throat dry and more prone to vibration (snoring) and irritation. Chronic nasal obstruction is directly linked to a higher prevalence of sleep-disordered breathing, including snoring and sleep apnea.
If your nose feels stuffy at bedtime, a saline rinse 15 to 20 minutes before sleep can clear out mucus and allergens. Nasal strips, which stick across the bridge of the nose and physically pull the nostrils open, reduce nasal airway resistance by up to 27% and can noticeably improve airflow. Internal nasal dilators, small flexible cones placed inside the nostrils, perform even better in some studies, boosting inspiratory airflow by as much as 110% compared to breathing unaided. Both are inexpensive, drug-free, and available at most pharmacies.
Mouth taping has gained popularity as a way to train nasal breathing overnight. The idea is simple: a small strip of porous surgical tape over the lips encourages your body to default to nasal breathing. If you try this, use tape designed for skin, leave enough slack that you could open your mouth in an emergency, and make sure your nose is clear before starting. It’s not appropriate for anyone who suspects they have sleep apnea or who can’t breathe comfortably through their nose.
Strengthen Your Throat and Tongue
The muscles surrounding your airway relax during sleep, and in some people they relax enough to partially collapse. You can train these muscles to hold more tone overnight through a set of simple exercises sometimes called oropharyngeal exercises or myofunctional therapy. A randomized trial found that three months of daily practice reduced the frequency of snoring by 36% and the overall intensity of snoring by 59%. A broader analysis of nine studies showed these exercises cut breathing pauses during sleep by roughly 50%.
The exercises themselves are straightforward. Pressing the tip of your tongue firmly against the roof of your mouth and sliding it backward. Pressing the entire tongue flat against the roof of the mouth and holding for a few seconds. Forcefully pushing the back of the tongue down while keeping the tip touching the lower front teeth. Repeating vowel sounds (A-E-I-O-U) in an exaggerated way to engage the throat. Most programs take about 15 to 20 minutes a day. Consistency matters more than duration, and results in the studies appeared after about eight weeks of daily practice.
Clean Up Your Bedroom Air
Allergens in your bedroom, including dust mites, pet dander, pollen, and mold spores, trigger nasal inflammation that narrows your airways before you even fall asleep. A HEPA air purifier running in the bedroom captures these microscopic particles and can significantly reduce overnight congestion, sneezing, and the cycle of waking up with a stuffy nose. Running the purifier for at least 30 minutes before bed (and ideally all night) gives it time to cycle the room’s air.
Humidity plays an equally important role. Air that’s too dry irritates nasal passages and makes mucus thicker, while air that’s too humid encourages dust mites and mold. The ideal range for respiratory health is 30 to 50% relative humidity. A simple hygrometer (under $15 at most hardware stores) lets you check where your bedroom falls. In dry climates or during winter heating season, a cool-mist humidifier can bring levels into range. In humid climates, a dehumidifier or air conditioning does the opposite job.
Washing bedding weekly in hot water, keeping pets out of the bedroom, and vacuuming with a HEPA-filter vacuum are low-effort habits that reduce the allergen load your nose has to deal with overnight.
Elevate Your Head Slightly
Raising the head of your bed by four to six inches, or using a wedge pillow, helps in two ways. It reduces the effect of gravity on the soft tissues of the throat, keeping the airway wider. It also helps prevent acid reflux from reaching the throat, which can cause swelling and nighttime coughing that disrupts breathing. This is especially useful for people who notice their congestion or snoring worsens when they lie completely flat. Stacking regular pillows can work in a pinch, but a wedge pillow or bed risers provide a more consistent angle that doesn’t shift during the night.
Avoid Alcohol and Sedatives Before Bed
Alcohol relaxes the muscles in the throat more than normal sleep does, which is why people who don’t usually snore often snore after drinking. Even moderate amounts consumed within three hours of bedtime measurably increase airway resistance and the number of breathing pauses overnight. Sedating medications, including some antihistamines and sleep aids, can have a similar effect. If you notice your breathing or snoring is worse on nights you drink, the simplest fix is a three-to-four-hour buffer between your last drink and bedtime.
Signs Your Breathing Needs Medical Attention
Roughly one in three adults in the U.S. has obstructive sleep apnea, a condition where the airway repeatedly collapses during sleep. An estimated 80% of cases are undiagnosed. The lifestyle strategies above can help with mild snoring and general breathing quality, but sleep apnea requires its own treatment.
A quick self-screening tool called STOP-BANG uses eight yes-or-no questions to estimate your risk. The factors it checks are: loud snoring, daytime tiredness, observed pauses in breathing, high blood pressure, BMI over 35, age over 50, neck circumference over 16 inches, and male sex. Answering yes to three or four puts you at intermediate risk. Yes to five or more indicates high risk. Even two “yes” answers on the first four questions combined with either male sex, a BMI over 35, or a large neck circumference flags high risk. If any of that applies to you, a home sleep study or in-lab evaluation can confirm whether apnea is the issue and open the door to treatments that go well beyond what positioning or nasal strips can do.