Costnzo Sleep Earbuds Beige
Code
57% OFF Amazon
Promo code
Costnzo Sleep Earbuds Obsidian Black Amazon Promo Code J7MC17ZC: 57% Off
57% OFF with promo code at checkout
Amazon promo code
J7MC17ZC
View Deal on Amazon
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Apply Amazon promo code J7MC17ZC at checkout to take 57% off the Costnzo Sleep Earbuds Obsidian Black. Codes are limited – if it stops working, the seller has usually released a new one and this page updates.
Costnzo deals Best sleep earbuds Electronics
Amazon listing: Sleep Earbuds for Side Sleepers-Noise Cancelling Headphones(Obsidian Black)
Costnzo Sleep Earbuds in Obsidian Black are Bluetooth earbuds built for side sleepers, and promo code J7MC17ZC takes 57% off on Amazon. If you searched for a costnzo sleep earbuds amazon promo code, this listing is the match.
Instead of sitting inside the ear canal, the earbuds use a curved, low-profile shape that rests outside it, which is the seller's answer to bulky earbuds on a pillow. A four-tap gesture switches between sleep mode and music mode, then a tap picks an auto shutdown of one, two or three hours. In sleep mode, low-battery and power-off tones are muted. Each earbud plays for about 5 hours, and the case stretches that to 24 hours.
They suit anyone who listens to audio at bedtime. Enter the code at checkout and confirm the lowered total. Bluetooth 5.4 and 8mm drivers are listed too. Pairing is done through Bluetooth, so check that your phone is nearby when you first set them up.
On this page
- Costnzo Sleep Earbuds Obsidian Black review: pros and things to check
- Why this Costnzo deal is worth it
- Costnzo Sleep Earbuds Obsidian Black deal facts
- Costnzo Sleep Earbuds Obsidian Black photos
- How to use the Costnzo Sleep Earbuds Obsidian Black promo code J7MC17ZC
- Key features of the Costnzo Sleep Earbuds Obsidian Black
- Costnzo Sleep Earbuds Obsidian Black: what you get
- Costnzo Sleep Earbuds Obsidian Black at a glance
- Who should buy it (and who should skip it)
- Costnzo Sleep Earbuds Obsidian Black vs similar sleep earbuds deals
Costnzo Sleep Earbuds Obsidian Black review: pros and things to check
What we like
- 57% off with code J7MC17ZC
- Sleep earbuds for side sleepers
- Non in-ear low profile fit
- Four tap sleep mode switch
- Auto shutdown timer options
Things to check
- Seller codes often cover one size or color only
- Codes are limited-use and can end without notice
- Features listed here come from the seller's Amazon listing – we have not tested every product hands-on
Why this Costnzo deal is worth it
- Promo code J7MC17ZC takes 57% off, a big drop for a niche sleep audio product.
- A low-profile shape aims at side sleepers who struggle with regular earbuds on a pillow.
- Muted low-battery and shutdown tones in sleep mode mean fewer sudden sounds at night.
Check Today's Active Deals on Amazon Amazon's deals page – lightning deals, coupons and price drops, updated all day.
Costnzo Sleep Earbuds Obsidian Black deal facts
| Deal type | Promo code |
|---|---|
| Discount | 57% off with code J7MC17ZC |
| How good is it? | Bigger discount than 90% of the 3,740 Electronics deals we track (category average: 43% off) |
| Brand | Costnzo – 3 deals tracked by AmazonHaul |
| Amazon rating | 4 out of 5 (51 ratings, as of Oct 23, 2026) |
| First spotted | Oct 19, 2026 |
| Where to buy | Amazon.com (sold through the regular listing, normal Amazon returns) |
Costnzo Sleep Earbuds Obsidian Black photos
Product photos from the Amazon listing – tap any photo to see it on Amazon. Colors and included items can differ by variant – check the listing before you order.
How to use the Costnzo Sleep Earbuds Obsidian Black promo code J7MC17ZC
- Tap Get this deal on Amazon above – it opens the exact listing the code was issued for.
- Choose the size, color or pack the code covers and add it to your cart. If the listing shows a Save 57% promotion box, the discount may apply by itself.
- At checkout, paste J7MC17ZC into Gift card or promotion code, tap Apply, and confirm the discount in the order total before you place the order.
Key features of the Costnzo Sleep Earbuds Obsidian Black
- Sleep earbuds for side sleepers
- Non in-ear low profile fit
- Four tap sleep mode switch
- Auto shutdown timer options
- Bluetooth 5.4 connection
- Obsidian Black finish
From the Amazon listing. Specs can change by variant – the listing is always the final word.
Costnzo Sleep Earbuds Obsidian Black: what you get
- Curved, low-profile earbuds that sit outside the ear canal rather than inside.
- Four taps switch between sleep and music modes, with auto shutdown after 1, 2 or 3 hours.
- About 5 hours of playback per earbud, extended to 24 hours with the charging case.
- Bluetooth 5.4 with 8mm dynamic drivers, touch controls and support for phones, consoles and PCs.
Costnzo Sleep Earbuds Obsidian Black at a glance
| Brand | Costnzo |
|---|---|
| Product type | Sleep Earbuds |
| Category | Electronics |
| Color | Obsidian Black |
| Amazon promo code | J7MC17ZC (active) |
| Discount | 57% off |
| ASIN | B0H8LFWTRY |
| Last checked | Oct 23, 2026 |
Who should buy it (and who should skip it)
These earbuds are for side sleepers, light sleepers and travelers who like falling asleep to music, podcasts or audiobooks and find regular earbuds uncomfortable lying down. They also work as everyday wireless earbuds. If you need deep isolation from sound, or you prefer a sleep headband or speaker, a different kind of product would fit better.
Costnzo Sleep Earbuds Obsidian Black vs similar sleep earbuds deals
| Product | Discount | Promo code | Stand-out feature |
|---|---|---|---|
| Costnzo Sleep Earbuds Obsidian Black (this deal) | 57% off | Yes | Sleep earbuds for side sleepers |
| Costnzo Sleep Earbuds Beige | 54% off | Yes | Non-in-ear sleep earbuds |
| I love e iFecco Sleep Earbuds | 50% off | Yes | Ultra low profile for side sleepers |
Discounts as last checked by our team; open each page for the current code.
Before you buy the Costnzo Sleep Earbuds Obsidian Black: quick tips
- Learn the four-tap gesture before bedtime, because sleep mode locks the buttons once activated.
- Charge the case regularly, since each earbud only lasts around 5 hours without it.
- Check the fit lying down on your usual pillow, as the thickness of a pillow changes how the shape feels.
- Confirm the Bluetooth connection with your phone or tablet before you rely on it overnight.
Costnzo Sleep Earbuds Obsidian Black promo code history
| Code | Discount | Status |
|---|---|---|
| J7MC17ZC | 57% off | Active – checked Oct 23, 2026 |
We add every new code for this product here, so you can see how often the seller runs promotions.
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Helpful resources before you buy the Costnzo Sleep Earbuds Obsidian Black
- How to redeem a promotional code – Amazon Help
- Returns and refunds – Amazon Help
- Energy-efficient (ENERGY STAR) products – ENERGY STAR
- Online shopping tips – FTC Consumer Advice
Independent sources – we are not affiliated with them.
Sleep Earbuds: helpful videos
There is no video of this exact model yet, so here are useful sleep earbuds videos from YouTube.
I Tested $200 Sleep Earbuds vs AirPods (Worth It?) – by Gemini Connect and Optimize and Thrive Lab on YouTube. We are not affiliated with the channel.
More sleep earbuds videos
ANC Earbuds DESIGNED for SLEEP - Anker Soundcore Sleep A30 review – SoundGuys
These Earbuds Put You To Sleep AND Block Snoring: Sleep A30 Review – TecH MoE
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Did code J7MC17ZC work for you?
Checked by the AmazonHaul Deals Team · last checked Oct 23, 2026
We find codes from sellers, brand promotions and our Facebook groups, open each Amazon listing to confirm the discount, and mark codes as ended when members report them. Product details come from the Amazon listing – we have not tested every product hands-on. About us · How we earn
Costnzo Sleep Earbuds Obsidian Black coupon & promo code FAQ
How do I switch on sleep mode?
The seller says four taps on either earbud switch between sleep mode and music mode. After that, a single tap within 10 seconds sets auto shutdown to 1, 2 or 3 hours, and the buttons lock.
How long does the battery last?
The listing states about 5 hours of playtime per earbud on a single charge. The charging case extends the total to 24 hours of music. Real results vary with volume and use.
Which devices work with the earbuds?
The seller lists iPhones, Android phones, PS4, Xbox and Windows, saying any Bluetooth device should work using the Bluetooth 5.4 chip. Check the listing if you have a specific device in mind.
Is there a coupon with J7MC17ZC?
No clip coupon is shown with this deal on our page, so promo code J7MC17ZC at 57% off is the discount to use. Confirm the final total in the order summary before you pay.
Is J7MC17ZC still working?
It was active when we last checked on Oct 23, 2026. Seller codes usually run 24–72 hours or until a set number of uses is gone, so apply it soon. Our team marks a code as ended as soon as members report it.
Is there a Costnzo Sleep Earbuds Obsidian Black coupon or discount code?
Yes – J7MC17ZC is the current Amazon promo code (57% off). Amazon calls it a promotion code; it works the same way as a coupon or discount code at checkout.
Do I need Amazon Prime to use it?
No. Promo codes work for any Amazon account unless the promotion box on the product page says Prime-only.
Why didn't the code apply?
Usually a different size or color than the one the code covers, a one-per-account limit, or the code sold out. See all the fixes.
Shopping around? Compare the best sleep earbuds deals (3 codes), every Costnzo promo code, Electronics deals, 50% Off or More, Amazon Promo Codes and Amazon promo codes from October 19.
As an Amazon Associate, AmazonHaul earns from qualifying purchases. Promo codes and coupons are set by sellers, can sell out or end early, and the final price is always the one shown in your Amazon cart.