---
product_id: 628965889
title: "Sleep A20 by Anker Sleep Earbuds, 30dB High-Frequency Noise Reduction, Small Earplugs for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Sleep Monitor, Personal Alarm"
brand: "soundcore"
price: "฿13687"
currency: THB
in_stock: true
reviews_count: 8
category: "Soundcore"
url: https://www.desertcart.co.th/products/628965889-sleep-a20-by-anker-sleep-earbuds-30db-high-frequency-noise
store_origin: TH
region: Thailand
---

# Sleep monitoring with MEMS sensor 30dB high-frequency noise reduction 80 hours total playtime Sleep A20 by Anker Sleep Earbuds, 30dB High-Frequency Noise Reduction, Small Earplugs for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Sleep Monitor, Personal Alarm

**Brand:** soundcore
**Price:** ฿13687
**Availability:** ✅ In Stock

## Summary

> 😴 Elevate your nights: Sleep smarter, not harder with Soundcore Sleep A20!

## Quick Answers

- **What is this?** Sleep A20 by Anker Sleep Earbuds, 30dB High-Frequency Noise Reduction, Small Earplugs for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Sleep Monitor, Personal Alarm by soundcore
- **How much does it cost?** ฿13687 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/628965889-sleep-a20-by-anker-sleep-earbuds-30db-high-frequency-noise)

## Best For

- soundcore enthusiasts

## Why This Product

- Trusted soundcore brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Marathon Battery Life:** Up to 14 hours per charge, 80 hours with case—sleep soundly without interruptions.
- • **Unmatched Noise Masking:** 4-point system + triple-seal ear tips block distractions for deep, uninterrupted rest.
- • **Designed for Side Sleepers:** Ergonomic Air Wing and ultra-soft materials ensure pressureless comfort all night long.
- • **Smart Sleep Analytics & Alarm:** Track sleep quality and wake up refreshed with personalized insights and a gentle alarm.
- • **Seamless Bluetooth 5.3 Streaming:** Stream white noise or your favorite content with ultra-stable wireless connectivity.

## Overview

The Soundcore Sleep A20 by Anker are premium sleep earbuds engineered for side sleepers, featuring a 4-point noise masking system that reduces high-frequency noise by up to 30dB. With an ergonomic design wrapped in ultra-soft materials, they provide pressureless comfort throughout the night. Equipped with Bluetooth 5.3, they offer up to 14 hours of continuous playback per charge and 80 hours total with the charging case. Advanced MEMS sensors monitor sleep patterns and movements, delivering actionable sleep analytics and a personal alarm to optimize your rest. Ideal for professionals seeking a tech-savvy, comfortable, and effective sleep aid.

## Description

desertcart.com: Soundcore Sleep A20 by Anker Sleep Earbuds, 30dB High-Frequency Noise Reduction, Small Earplugs for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Sleep Monitor, Personal Alarm : Electronics

Review: Great for sleeping and outstanding customer service. - I bought these to help me sleep. I listen to audio books to keep my mind focused and drift off. My mind tends to wander at night and I find these fit comfortably in my ears and let me sleep on my side without any issues. I keep these in all night without discomfort. Battery life is good for the while night 10+ hours when listening to books at low volume. Sound quality is good for voice but these are probably not the best choice for audiophiles. 14 months after I bought these, the left ear bud would not charge past 50%. Soundcore's customer service was outstanding. I sent them an email and they got back to me withing 24 hours with some troubleshooting steps. Unfortunately, they didn't work. However, I called them and was on hold for 10 minutes before I just left a call back number. They called me back in about an hour. Erin, the customer service rep was awesome. She was well spoken, patient, and knowledgeable on the product. She went through the email troubleshooting tips to make sure I did all the steps. After answering a few questions, they replaced the ear buds and even paid for shipping.
Review: Good sleep earbuds, but Soundcore will brick them with firmware updates, so beware - I have been an Anker Soundcore Sleep Earbuds customer since the beginning. I purchased the original A10, then backed the A20 in the Kickstarter and purchased a second pair (for my wife) from desertcart. I also backed and received the A30 on Kickstarter and are using those presently. So, I don't give a review like this one lightly. I got my original A20 earbuds back in May 2024 and the 2nd pair in Jan 2025. Honestly, they are awesome. Sound quality is great, periodic cleaning kept them working well, they mask noise well and the battery life was perfectly fine until.... A month or so ago, my A20's got the 1.57 firmware update from Soundcore. I didn't think anything of it at the time, but the right earbud just started refusing to charge above 30%. It would charge from 0% to 30% just fine, indicating it had good contact with the pogo pins. But it simply would not charge over 30%, ever. The left earbud charged perfectly fine to 100% every time. I did some research and it turns out many others are experiencing the same issue, specific to the 1.57 firmware update. Apparently, that firmware has a known issue where it messes up the battery calibration of the right earbud and causes this exact problem. So, in short, Soundcore pushed a firmware update to my A20 earbuds and in the process made them unusable. You might think "Well, they're in the 18 month warranty, just get them replaced". I did reach out to support, and they agreed to replace the earbuds, but what happens when Soundcore pushes out a firmware update that breaks the earbuds when they are just out of warranty? If the warranty is 18 months, and Soundcore can break your device outside of the warranty at any time, this means that the device has an 18 month lifespan. So, if you are going to purchase these be aware that they should be considered disposable and you probably won't get more than 18 months of usage out of them given the above. UPDATE: 2025-12-20 Soundcore sent me replacement A20's for the ones that they damaged with their 1.57 firmware update. These new A20 sleep buds came with a much higher revision of the firmware 03.22. So, it looks like the firmware now skips from 1.50 to 03.22, as Soundcore definitely has pulled 1.57 off their servers (since it broke so many customers' A20s). But... the replacement pair Soundcore sent me were defective. The right earbud consistently discharges at more than 2x the left earbud. So for example, after 7 hours of Sleep Mode white noise playback, the left ear bud would be at 70% while the right ear bud was at 30%. I am continuing to see if I can get Soundcore to actually send me a functioning replacement for the sleep buds they broke. We'll see what happens... UPDATE: 2025-12-29 Soundcore sent me a second replacement for the defective A20's that they sent as the first replacement for the A20's they bricked with the 1.57 firmware update. So, this is now the third pair of A20s... This pair appears to work correctly, and the right and left earbud discharge battery at the same rate and look like they will achieve 12-14 hours of playback at 50% volume in Sleep Mode. So... after several weeks of back and forth, and multiple pairs of bricked or defective earbuds, it looks like I have a properly working pair again. Support was very helpful about all of this, and I found them receptive to all of the issues I was experiencing, so I don't want to be disparaging of Soundcore support at all here. In general, I've found them good to work with. But... I think the quality control of the Soundcore products is not great. I had battery discharge issues with my original A10 earbuds, and went through a similar replacement dance with those as well. It seems like Soundcore's sleepbuds are prone to battery issues very frequently, since I've now seen issues with uneven battery discharge in 4 separate pairs of A10 and A20 earbuds. My wife's A20 sleepbuds are still on the 1.50 firmware, as the 1.57 firmware has been pulled by Soundcore. I asked support about this and they confirmed that there were multiple hardware revisions of the A20's, and the replacement A20's that I got (which are on the 03.22 firmware) are a later hardware revision than the A20s that were on the 1.50 and 1.57 firmware. Support left it very ambiguous as to whether or not hardware with the 1.50 line of firmware would even continue to get firmware updates, or if that hardware revision has been effectively abandoned by Soundcore. If you are going to purchase these, you need to make sure that the firmware is the 03.22 line, and NOT the 1.50/1.57 line, since that means you have an older revision of the hardware.

## Features

- Full Night of Peaceful Sleep: Enjoy the distinctive 4-point noise masking system with sound masking, twin-seal ear tips providing 3× stronger passive noise blocking, and smart volume control to block out unwanted noise. Although Sleep A20 does not have active noise cancellation, it effectively reduces noise in high-frequency bands.
- Ideal for Side Sleepers: Sleep A20 combines soundcore's Air Wing with a 3D ergonomic design. Wrapped in an ultra-soft material, it provides the added benefit of pressureless comfort—even when sleeping on your side.
- Ultra-Long Playtime: Sleep mode boasts 14 hours of battery life on a single charge, extending to 80 hours with the case. Bluetooth mode offers 10 hours of playtime, with an additional 55 hours via the charging case.
- Stream Content Via Bluetooth: Features a customizable white noise library and a stable Bluetooth 5.3 connection, letting you stream your favorite audio for a restful night's sleep.
- Sleep Analytics for Better Sleep: Sleep A20 tracks sleeping positions and movement through the night using a MEMS sensor. Coupled with a Real-Time Clock, enjoy precise sleep quality analysis and acquire vital information regarding your nocturnal habits.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRGR2TS5 |
| Additional Features | 14-Hour Playtime, 4-Point Noise Masking System, Pressureless Comfort, Sleep Monitor |
| Age Range Description | All |
| Antenna Location | Sleeping |
| Audio Driver Size | 5 Millimeters |
| Audio Driver Type | Balanced Armature Driver |
| Audio Latency | 300 Milliseconds |
| Battery Average Life | 10 Hours |
| Battery Charge Time | 4.5 Hours |
| Best Sellers Rank | #2,171 in Electronics ( See Top 100 in Electronics ) #3 in Sleep Earbuds |
| Bluetooth Range | 15 Meters |
| Bluetooth Version | 5.3 |
| Brand Name | Soundcore |
| Built-In Media | Breathable Ear Tips ×3, Charging Case ×1, Ear Wings ×3, Sealed Ear Tips ×4, Sleep A20 ×1 |
| Cable Features | Detachable |
| Carrying Case Battery Average Life | 50 Hours |
| Carrying Case Height | 29.1 Millimeters |
| Carrying Case Length | 65.86 Millimeters |
| Carrying Case Material | Plastic |
| Carrying Case Width | 65.87 Millimeters |
| Color | Slumber Beige |
| Compatible Devices | iPhone, iPad, Computer |
| Connectivity Technology | Wireless |
| Control Method | Touch |
| Control Type | Tap Control |
| Controller Type | Touch |
| Customer Package Type | Rigid and cushioned packaging |
| Customer Reviews | 3.5 3.5 out of 5 stars (4,966) |
| Earpiece Shape | Rounded tips with angled ear hooks or wings |
| Enclosure Material | Plastic |
| External Testing Certification | ANATEL: 00559-25-16934 |
| Frequency Range | 20 Hz - 20,000 Hz |
| Headphone Folding Features | In Ear |
| Headphone Jack | No Jack |
| Headphones Ear Placement | In Ear |
| Impedance | 16 Ohms |
| Is Autographed | No |
| Is Electric | No |
| Item Type Name | In-Ear |
| Item Weight | 0.14 Pounds |
| Manufacturer | Anker |
| Model Name | Sleep A20 |
| Model Number | A6611 |
| Noise Control | Sound Isolation |
| Number of Items | 1 |
| Series Number | 6611 |
| Specific Uses For Product | Sleeping |
| Style Name | Classic |
| Theme | Sleep |
| Total USB 2.0 Ports | 1 |
| UPC | 194644192228 |
| Unit Count | 1.0 Count |
| Warranty Description | 18.00 |
| Water Resistance Level | Waterproof |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** Soundcore
- **Color:** Slumber Beige
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Impedance:** 16 Ohms

## Images

![Sleep A20 by Anker Sleep Earbuds, 30dB High-Frequency Noise Reduction, Small Earplugs for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Sleep Monitor, Personal Alarm - Image 1](https://m.media-amazon.com/images/I/410c51tHtvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for sleeping and outstanding customer service.
*by J***N on April 8, 2026*

I bought these to help me sleep. I listen to audio books to keep my mind focused and drift off. My mind tends to wander at night and I find these fit comfortably in my ears and let me sleep on my side without any issues. I keep these in all night without discomfort. Battery life is good for the while night 10+ hours when listening to books at low volume. Sound quality is good for voice but these are probably not the best choice for audiophiles. 14 months after I bought these, the left ear bud would not charge past 50%. Soundcore's customer service was outstanding. I sent them an email and they got back to me withing 24 hours with some troubleshooting steps. Unfortunately, they didn't work. However, I called them and was on hold for 10 minutes before I just left a call back number. They called me back in about an hour. Erin, the customer service rep was awesome. She was well spoken, patient, and knowledgeable on the product. She went through the email troubleshooting tips to make sure I did all the steps. After answering a few questions, they replaced the ear buds and even paid for shipping.

### ⭐ Good sleep earbuds, but Soundcore will brick them with firmware updates, so beware
*by P***S on December 13, 2025*

I have been an Anker Soundcore Sleep Earbuds customer since the beginning. I purchased the original A10, then backed the A20 in the Kickstarter and purchased a second pair (for my wife) from Amazon. I also backed and received the A30 on Kickstarter and are using those presently. So, I don't give a review like this one lightly. I got my original A20 earbuds back in May 2024 and the 2nd pair in Jan 2025. Honestly, they are awesome. Sound quality is great, periodic cleaning kept them working well, they mask noise well and the battery life was perfectly fine until.... A month or so ago, my A20's got the 1.57 firmware update from Soundcore. I didn't think anything of it at the time, but the right earbud just started refusing to charge above 30%. It would charge from 0% to 30% just fine, indicating it had good contact with the pogo pins. But it simply would not charge over 30%, ever. The left earbud charged perfectly fine to 100% every time. I did some research and it turns out many others are experiencing the same issue, specific to the 1.57 firmware update. Apparently, that firmware has a known issue where it messes up the battery calibration of the right earbud and causes this exact problem. So, in short, Soundcore pushed a firmware update to my A20 earbuds and in the process made them unusable. You might think "Well, they're in the 18 month warranty, just get them replaced". I did reach out to support, and they agreed to replace the earbuds, but what happens when Soundcore pushes out a firmware update that breaks the earbuds when they are just out of warranty? If the warranty is 18 months, and Soundcore can break your device outside of the warranty at any time, this means that the device has an 18 month lifespan. So, if you are going to purchase these be aware that they should be considered disposable and you probably won't get more than 18 months of usage out of them given the above. UPDATE: 2025-12-20 Soundcore sent me replacement A20's for the ones that they damaged with their 1.57 firmware update. These new A20 sleep buds came with a much higher revision of the firmware 03.22. So, it looks like the firmware now skips from 1.50 to 03.22, as Soundcore definitely has pulled 1.57 off their servers (since it broke so many customers' A20s). But... the replacement pair Soundcore sent me were defective. The right earbud consistently discharges at more than 2x the left earbud. So for example, after 7 hours of Sleep Mode white noise playback, the left ear bud would be at 70% while the right ear bud was at 30%. I am continuing to see if I can get Soundcore to actually send me a functioning replacement for the sleep buds they broke. We'll see what happens... UPDATE: 2025-12-29 Soundcore sent me a second replacement for the defective A20's that they sent as the first replacement for the A20's they bricked with the 1.57 firmware update. So, this is now the third pair of A20s... This pair appears to work correctly, and the right and left earbud discharge battery at the same rate and look like they will achieve 12-14 hours of playback at 50% volume in Sleep Mode. So... after several weeks of back and forth, and multiple pairs of bricked or defective earbuds, it looks like I have a properly working pair again. Support was very helpful about all of this, and I found them receptive to all of the issues I was experiencing, so I don't want to be disparaging of Soundcore support at all here. In general, I've found them good to work with. But... I think the quality control of the Soundcore products is not great. I had battery discharge issues with my original A10 earbuds, and went through a similar replacement dance with those as well. It seems like Soundcore's sleepbuds are prone to battery issues very frequently, since I've now seen issues with uneven battery discharge in 4 separate pairs of A10 and A20 earbuds. My wife's A20 sleepbuds are still on the 1.50 firmware, as the 1.57 firmware has been pulled by Soundcore. I asked support about this and they confirmed that there were multiple hardware revisions of the A20's, and the replacement A20's that I got (which are on the 03.22 firmware) are a later hardware revision than the A20s that were on the 1.50 and 1.57 firmware. Support left it very ambiguous as to whether or not hardware with the 1.50 line of firmware would even continue to get firmware updates, or if that hardware revision has been effectively abandoned by Soundcore. If you are going to purchase these, you need to make sure that the firmware is the 03.22 line, and NOT the 1.50/1.57 line, since that means you have an older revision of the hardware.

### ⭐⭐⭐⭐ Improved my sleep. Amazing. Bose QC user
*by E***Y on April 17, 2025*

- Noise Cancellation - Coming from Bose QC earbud I thought it’ll be hard to impress me with the quality Bose has provided especially when Bose’s famous for noise cancellation. However, I find that this soundcore earbuds can provide me with the same level of noise canceling with Bose’s only with slightly differences. I experienced loud high pitch noise a lot as I have a young child at home, I noticed they both can cancel loud deeper noises fine but having a hard time with high pitch noises but they way they handle those noises are different. Bose seems to ‘lower the volume’ of the noises they can’t block while Soundcore seems to make the sounds seem ‘farther away’. Away, the level of cleanliness in sounds that could and could not peak through are about the same. - Comfort - Soundcore really stand out in this area as it’s made for comfort in sleep positions, it has light weight to the point sometimes I forgot I’m wearing it. Problem is… the noise canceling silicones can make your ears sweat and greasy. I find myself often feel uncomfortable and needed to clean my ears often if I wear these earbuds just to filter out the noises during the day or still watching something before sleeping. And the moment I wake up I’d have the urge to clean my ears right away as well. Before I got Soundcore I used to use Bose during sleep. Bose always fell off even with the wings, and they are heavy and make my ears sore. Because they’re kind of bulky I have a hard time sleeping in my comfort position as I’m a side sleeper. And using Bose to help me sleep for a week straight led me to have some bleeding before. - Durable - Material … I heard a review from a YouTuber that the material is soft and can easily be torn. I do agree that the silicone part really feel soft and it might rip apart while changing the sizes, however, I never have a problem with it… I’ve try to be mindful but not too gentle with it and my earbuds are still fine. I never pull the silicones while using them so I never experienced any risks. I’d say they are quite sturdy more than how they feel. Battery … the life of the battery is amazing especially comparing to Bose. I never test if they really do last 50 hours as they claimed but I can use Soundcore earbuds for a few days and nights straight without charging them. While Bose last about 2-3 hrs with noise cancellation mode, Soundcore can last the whole night from before I’m actually sleeping to when I wake up, so I can play my calming noises all night. Charging is quite fast…. Honestly I just never experienced it running out of power at all even I use it quite a lot. Unlike Bose that I feel I constantly need to charge the whole thing daily because of my heavy use. I’d say they both have pros and cons, I still use both of them, especially when going out since you can’t turn off Soundcore’s noise cancellation unless you change the silicone buds but Bose can with just a tap. I prefer using Soundcore’s while I’m at home since they do stay in place better, but then again I still have to take them out and clean my ears and the earbuds often. Bose would be better if I plan to use noise cancellation in short period. And I still use my eye mask with headphones over Soundcore’s earbud sometimes, they don’t stay as good but my ears feel less icky.

## Frequently Bought Together

- Soundcore Sleep A20 by Anker Sleep Earbuds, 30dB High-Frequency Noise Reduction, Small Earplugs for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Sleep Monitor, Personal Alarm
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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-27*