Frequently Asked Questions

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Does the SleepGuard headband come with batteries?

Yes, the headband comes with two sets of CR2032 lithium 3V coin cell batteries. That's a two-month supply of batteries!

Where can I buy replacement batteries?

The headband uses CR2032 batteries, which can usually be purchased at any local drug store or Radio Shack. You can also buy batteries for only $1 each here on this website.

How long do the batteries last?

Batteries last for roughly 320 hours of use, or 40 nights with 8 hours of sleep each night.


Is a prescription required?

No, the SleepGuard biofeedback headband is FDA-cleared for non-prescription use for muscle-re-education.

Has there been a clinical trial?

Yes, you can view the clinical trial results by clicking here.

Is this covered by health insurance?

The SleepGuard biofeedback headband may be covered by your insurance under Durable Medical Equipment (DME) code E0746 (Electromyography (EMG), Biofeedback Device). Even though no prescription is needed to buy the SleepGuard biofeedback headband, your insurance company may require that it be prescribed by your doctor in order to be covered by your insurance.


What is bruxism?

Bruxism is the word dentists generally use to refer to all forms of rhythmic clenching and grinding of teeth. Some dentists also include prolonged clenching (such as leads to migraines) in their definition of bruxism, and some dentists do not. Bruxism often takes place unconsciously while awake or asleep, and is more common with people who are under stress. For those who primarily grind their teeth, the damage will often be visible to dentists. For those who primarily clench, pain may be experienced in the form of sore or sensitive teeth, jaw ache, facial muscle or nerve pain, migraines, headaches, dizziness, neck pain, back pain, and muscle spasms of the face, neck, and back. Bruxism during sleep also often causes decreased/impaired REM sleep (the time of sleep when muscles rejuvenate).

Is the SleepGuard headband safe to use?

Yes, the headband has no known side effects and is 100% safe. The gentle RelaxTone biofeedback helps guide your brain to eliminate subconscious clenching. The SleepGuard biofeedback headband does not put any electrical signals into the body, and it is electromagnetically shielded so it gives off no electromagnetic fields. The device is also registered and approved by the FDA.

Will it disrupt my sleep?

As long as you have done the recommended daytime practice so that you have learned to instinctively relax when you hear the biofeedback sound, you will be able to respond in your sleep without waking up.

The RelaxTone biofeedback only happens briefly when you start clenching and stops when you stop. Once your grinding/clenching stops, it becomes easier for your body to reach REM (Rapid Eye Movement) sleep, and once you reach REM sleep, all clenching and grinding stops. For these reasons, many users report better sleep with the SleepGuard biofeedback headband than without!

Will my partner be disturbed by the sound?

Most users don’t report any problems with disturbing their partners. Even in the rare instance when partners do hear sound from the SleepGuard headband, it’s far less disturbing than the old sound of grinding teeth! SleepGuard's RelaxTone biofeedback is designed to be as quiet and confidential as possible, with volume control for a perfect balance to keep you and your partner sleeping soundly.

How long should I wear the SleepGuard biofeedback headband before I should expect to see an improvement?

Some people respond very quickly, while others may see a more gradual improvement over time. Many users see results in only a few days, but most users take about 10 days to see a drastic reduction in their teeth clenching/grinding. Each morning you can check the digital display on the SleepGuard biofeedback headband and see how many times you clenched your teeth, and for how long. This allows you to track your improvement on a daily basis.

Can I still use a mouth guard?

The SleepGuard biofeedback headband can be used with any mouth guard except a front-teeth-only mouth guard like the NTI. If you want to continue using a mouth guard to protect your teeth, particularly when you first start using your SleepGuard headband, you may do so. Many people use the SleepGuard biofeedback headband instead of a mouth guard, but there is no problem using the two together.

Do I have to wear the headband every night?

Some users report that using the SleepGuard biofeedback headband allows them to train themselves to stop clenching for periods of time. We recommend that users wear the SleepGuard biofeedback headband each night for at least two months, to allow healing to take place. Once you've reduced your clenching, you may choose to use your SleepGuard biofeedback headband less frequently.

Can I wear the SleepGuard headband during the day?

Yes. Many people also clench or grind unconsciously (for example, when they are driving or at work), so it can be beneficial to wear the biofeedback headband during those times as well.


When will my 21 day free trial start?

Your 21-day free trial starts when you receive your order.

How do I return my SleepGuard unit?

Call, or contact us here for a Return Authorization Number and send your unit (at your expense) to:

Holistic Technologies
32A Fairmont St.
Arlington, MA 02474

Please write the RMA number you receive on a slip of paper, and include that slip of paper in the package when you return your unit.

How long is your warranty?

New SleepGuard biofeedback headbands are warrantied to be free from manufacturing defects for a period of one year from the date of purchase, and refurbished SleepGuard biofeedback headbands are warrantied to be free from manufacturing defects for a period of 90 days from the date of purchase.

How do I return a defective unit?

If your unit is under warranty, call or e-mail for a Repair Authorization Number (RMA number), and send us your unit with that number written on a slip of paper in the package. If your unit is out of warranty, you can order an inexpensive refurbishment here.

How long does it take to get a replacement?

We usually refurbish and ship within two days of receiving a unit. Return shipping time depends on the shipping method you choose in your refurbishment order. Shipping time from the US to most countries using International Express Mail (the most economical shipping we offer, except to Canada, where the most economical shipping is UPS Standard to Canada) is typically less than one week. Shipping time using UPS Expedited (which costs more than twice as much) is typically less than four days. Shipping time from you to us depends on what shipping service you use.


What is the headband made of?

The fabric part of the headband is cotton terrycloth on the outside, and a polyester blend on the inside, with a half-inch wide adjustable elastic strap.

What are the sensor pads made of?

The sensor pads are made of hypoallergenic silicone rubber with suspended carbon.

Will these hurt my skin or cause a rash?

No. These materials were specifically selected because they will not react with your skin. However, if your skin is prone to acne, you may get more acne in the area of the sensor pads because your skin will be slightly more moist there. Acne under the sensor pads can be prevented by washing skin with an acne-preventative like Clearasil before putting on the headband.

Are there any allergy problems?

The biofeedback sound generator is stainless steel. For the vast majority of people, stainless steel is considered hypoallergenic. In rare cases, people may experience an allergic reaction to stainless steel after they have had piercings in their body. Only about one in 1000 customers have a problem with the stainless steel, and that problem can be solved by putting plastic tape over the stainless steel if needed.

How It Works

How does it work?

The SleepGuard biofeedback headband senses tiny electrical signals that your muscles generate when you clench or grind your teeth. Even though these muscle signals are only about one millionth of the voltage of a flashlight battery, the SleepGuard biofeedback headband can sense and respond to these signals consistently and reliably. The headband keeps track of how many times you clench, and the total amount of time you spend clenching. In biofeedback mode, it responds to clenching by generating a soft tone, which will allow you to instinctively relax your jaw muscles.

Is there any kind of clenching or grinding that the SleepGuard headband does not sense?

If you are in the small percentage of people who clench or grind only their front teeth, the SleepGuard headband will not properly sense this unless you also use a mouth guard that transfers clenching force to your back teeth.

I have a very small/large head. Will it fit me?

The unit’s comfortable adjustable headband is designed to work on the full range of adult head sizes.

How much does it weigh?

The headband is very lightweight, and with the entire electronic module (including batteries) weighs less than two ounces.

Can I use the SleepGuard headband on my child?

Bruxism is normal for children as their teeth come in and grow. Dentists do not recommend interfering with that. In addition, benefitting from the SleepGuard biofeedback takes a level of conscious intention that children don't have. Many parents have insisted on trying the headband with children, and the children always take the headband off (either intentionally or subconsciously) during the night.

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