CozyPhones Contour Series Review

The headphones-in-headband design is by no means original, but CozyPhones are more affordable than what's offered by industry pioneers. To say that they're better is debatable, but they are more popular with children due to their fun and attractive styles.

By Maria Ramos
Last Updated: August 24, 2018

Does the design of CozyPhones look a little bit too familiar? No, it’s not a case of déjà vu. They remind us of AcousticSheep SleepPhones, too! In fact, CozyPhones founder Paul Miller himself admits to purchasing and using “another pair of headband headphones”—along with other sleep headphones on the market—in the past, because listening to audio books and podcasts helps him fall back asleep when he wakes up in the middle of the night. However, he eventually decided to make his own sleep headphones, as he was not satisfied with the status quo. CozyPhones were born out of desire to make sleep headphones more affordable and more comfortable.

Today, CozyPhones has an expanded product line including the typical next steps that sleep headphones manufacturers usually take: sports headphones, wireless versions, more aesthetic options. It is worth noting, though, that the company ventured into new territory with their children’s headband headphones. These products come in fun animal-based designs—from frogs to foxes, and more—and help children and their parents not only when it comes to sleep hygiene, but also when it comes to managing special needs. It also helps that these smaller headband headphones fit snugly, and can be used by active children reading or playing games on their devices without earphones falling out.


As we mentioned above, CozyPhones is now a whole product line! For the purposes of this review, though, we’ll be focusing on the newest version of the company’s sleep headphones: the CozyPhones Contour Series. This new product features a mesh inner lining; and is marketed as having an ergonomic design that is also great for meditation, relaxation, and yoga. The mesh and the contour shape—said to dip down over a sleeper’s ears—work together to help the headphones fit properly and stay in place.

The headband comes in three colors—black, gray and violet—and while the part that touches skin is mesh, the outer lining is soft fleece. Information regarding specific fabric composition isn’t available anywhere online, as far as we can tell. Of course, there is the small opening at the back for the cord to hang out; it’s also the access point that is used to remove the headphone system when needed. The left and right earphones are marked, so you need to take note of how you re-position them after washing the headband.

Speaking of the headphone system: Usually located inside the headband, it consists of flat speakers connected to a flexible and durable braided cord that ends in a standard 3.5 mm stereo jack. We’re not completely sure of the length of the cord, though; the official website says it’s 1.5 meters long, while the information on Amazon notes that it’s 52 inches long. Whatever the case may be, for those keeping score: This cord is of similar make compared to what’s offered by SleepPhones Classic, but it’s much longer—no matter which of the two conflicting measurements is correct. (We’ve reached out to CozyPhones regarding this inconsistency and will update the review once they respond.)

What’s in the Box?

This subsection’s title is actually not applicable, as far as we can tell, because it seems like CozyPhones don’t come in a box. The way they’re packaged isn’t really shown on the official website or on Amazon, but upon further research, we came across photos of verified online purchases that show new CozyPhones in simple and clear plastic packaging. Some photos and video reviews also show a small travel pouch that comes with CozyPhones, but this isn’t mentioned as part of the Contour Series purchase on the official website or on Amazon. However, the travel pouch is explicitly mentioned and included as part of purchasing the original, all-fleece CozyPhones Sleep Headphones.

How’s the Sound Quality?

As with any pair of sleep headphones, the purpose of CozyPhones is mainly to provide a snug and comfortable fit. Sound quality isn’t the main focus here! That being said, the company is more vague than most when it comes to tech and audio specifications. While the product details of competitors AcousticSheep and DubsLabs, for example, are easy to find online, we actually couldn’t find the information needed for this section of the review on the company website. Instead, we found a listing of CozyPhones’ specs on Amazon. Similar to other industry counterparts, the  impedance is 32 Ω and the frequency range is from 20Hz-20kHz. What does this tell us? Well, with similar impedance and range, we can expect similar sound quality—which means that CozyPhones will do the job just as well as other sleep headphones on the market. Don’t expect noise cancellation; just passive noise blocking and isolation. And, like other headband headphones, expect the volume to be a little quieter—as the sound does need to go through fabric.


When you’re checking out CozyPhones, do remember that there are variations in the design that may affect you use them. A quick look at the official website reveals that there are three different kinds of CozyPhones in adult sizes: the original all-fleece version, the Contour Series, and a version with mesh inner lining and an lightweight fabric on the exterior similar to Lycra. As of this writing, the children’s sizes seem to be wholly all-fleece. In terms of technology additions, there’s also a version that uses Bluetooth, for people that prefer to go wireless. There is no version with microphone compatibility, though.

The CozyPhones line of children’s headband headphones seems to be the biggest success of the company so far, and while they are attractive and popular, discussing them further really does not have a place in this review. However, if you have or know a child that may benefit from sleep headphones—or just headphones that won’t fall off the ear or get lost or misplaced easily—CozyPhones may be your best bet.

Again, for people keeping score: CozyPhones, unlike AcousticSheep, does not offer replacement parts as of this writing. We saw no extra headphone systems or headbands in their online store! This feels to us like a vast oversight, as sleep headphones suffer from nightly wear and tear—and headbands need to be washed regularly to ensure good hygiene. More than anything we’ve mentioned so far, it’s this omission from their product line that has us veering more towards a negative conclusion. Think about it. Even if you find CozyPhones a perfect fit for you—enough to make wearing them to sleep a lifelong habit—it doesn’t make sense to keep on buying the whole product if all you need is spare headbands or a new headphone system to replace an aged or malfunctioning pair. It wouldn’t be efficient; and it would be less affordable in the long run. Switching to a brand that might have a slightly higher price point, but does offer replacements, would be a better option.

How Easy Are They to Use?

CozyPhones Contour Series are corded and designed to fit comfortably and snugly over the ears, so using them should be a breeze. Just plug the headphones into a media player or your smart phone, place the connected device somewhere secure—so it won’t fall to the floor and possibly be damaged if your CozyPhones cord pulls on it when you move in your sleep—and wait for yourself to drift off.

How Does It Feel to Wear Them All Night?

The speakers of the headphone system are less than an eight of an inch in thickness and padded in form. They’re also just slightly larger than a quarter in width. Tucked into the mesh and fleece headband, it’s almost impossible to feel them or tell where they are—unless you take the time and effort to find them. Back and stomach sleepers may not even notice them until sound is playing; and side sleepers will often find them more comfortable than any other kind of sleep headphones. Some reviews do say that side sleeping may still result in a little bit of tenderness in one ear, but you body will get used to it after a while. Bottom line: If you absolutely need to wear headphones while you sleep, headband headphones are probably the more comfortable option around.


We normally review products based on their own merit, but with the almost identical design of CozyPhones and AcousticSheep, we can’t help but make direct comparisons. After all, at the end of the day we are in the business of figuring out what our favorites are, and which ones we would recommend more.

CozyPhones is a new company, and while they may be leaps and bounds beyond AcousticSheep when it comes to their attractive designs for children, overall the design is still the same. If we’re to look at innovations and variations made on the original, AcousticSheep is way ahead, with its induction charging option and the inclusion of a microphone that can be used with their headphones. They even offer replacement parts. In terms of promise, AcousticSheep offers more than CozyPhones. The fact that the official CozyPhones website doesn’t offer comprehensive details about their products or a well-maintained FAQ doesn’t help their case, either.

However, when it comes to potential, we are cautiously optimistic! AcousticSheep SleepPhones seem to be very much focused on helping people sleep, as well as help with sufferers of tinnitus. They know their market, and have adpated to it quite well in the decade or so that they’ve been around. CozyPhones can conceivably compete in the same field, but with the new children’s headband headphones, what originally was an aesthetic option has turned into something that can improve lives of people with special needs. The potential of CozyPhones to bank on this niche they have carved for themselves is great—and we’re hoping this translates to better CozyPhones options for adults.

Is There a Trial Period with a Return Policy?

There is no real trial period, but there is a return policy that covers 30 days. To be able to return a pair of CozyPhones, the company states that the item must be in the same condition it was when it was received, unused and in the original packaging. It also requires a proof of purchase or a receipt. Defective or damaged items that were in this condition when received are also eligible for return or exchange.

How Good Is the Warranty?

CozyPhones come with a limited warranty that only applies to defects in material or problems with workmanship. Your item may be repaired or replaced. While the coverage is standard—most sleep headphones have a similarly stringent warranty—the time period is way below average, lasting only 180 days. Many competitors offer a one-year warranty period.


As of this writing: CozyPhones Contour Series are $21.97 on the company’s official website, and a dollar less at $20.97 on Amazon. They are definitely on the more affordable side, compared to other sleep headphones; while still being a company that is based in the US. Yes, there are cheaper options, but most that go below CozyPhones’ price point are of questionable origins and quality.


We would not recommend CozyPhones Contour Series over headband headphones made by more established brands. However, if CozyPhones were to add replacement parts to its online store, it would be a game changer—even with the shorter warranty period they offer. Sleep headphones like these aren’t designed to last forever, so warranties and guarantees can only go so far. The power to manage the maintenance of the product yourself is much more important! Also, we admit that the children’s headband headphones are very fun and attractive—we’d buy them for ourselves if they only came in adult sizes! Looking forward to the future and wishing for more improvements from CozyPhones. This may not be our top recommendation, but they are certainly a brand to watch.