---
product_id: 629111588
title: "Sleep A20 by Anker Sleep Earbuds, Noise Blocking Sleep Headphones, Small Design for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Personal Alarm"
brand: "soundcore"
price: "₩344832"
currency: KRW
in_stock: true
reviews_count: 9
category: "Soundcore"
url: https://www.desertcart.kr/products/629111588-sleep-a20-by-anker-sleep-earbuds-noise-blocking-sleep-headphones
store_origin: KR
region: South Korea
---

# 4-Point Noise Masking System 80H total playtime Ergonomic side-sleeper design Sleep A20 by Anker Sleep Earbuds, Noise Blocking Sleep Headphones, Small Design for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Personal Alarm

**Brand:** soundcore
**Price:** ₩344832
**Availability:** ✅ In Stock

## Summary

> 😴 Elevate your nights—sleep smarter, live better.

## Quick Answers

- **What is this?** Sleep A20 by Anker Sleep Earbuds, Noise Blocking Sleep Headphones, Small Design for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Personal Alarm by soundcore
- **How much does it cost?** ₩344832 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/629111588-sleep-a20-by-anker-sleep-earbuds-noise-blocking-sleep-headphones)

## 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

- • **Next-Level Noise Blocking:** Exclusive 4-Point Noise Masking System combined with 3x stronger Twin-Seal ear tips for immersive, distraction-free rest.
- • **Designed for Side Sleepers:** Ultra-soft, pressureless fit with Air Wing and 3D ergonomic design ensures you forget you’re even wearing them.
- • **Unmatched All-Night Battery:** Up to 14 hours continuous sleep mode, extended to 80 hours with compact charging case—stay powered through your busiest weeks.
- • **Seamless Bluetooth 5.3 Streaming:** Stable connection for music, podcasts, or customizable layered white noise playlists—perfectly curated for your sleep sanctuary.
- • **Smart Sleep Analytics & Personal Alarm:** Track sleep positions and quality with G-sensor tech, plus wake up refreshed with a gentle personal alarm.

## Overview

The soundcore Sleep A20 by Anker are premium sleep earbuds engineered for side sleepers seeking deep, uninterrupted rest. Featuring an advanced 4-Point Noise Masking System and 3x stronger passive noise blocking, these earbuds deliver immersive sound isolation. With up to 14 hours of continuous sleep mode playtime and an 80-hour total battery life via the sleek charging case, they outlast competitors. Bluetooth 5.3 enables seamless streaming of customizable white noise and content, while integrated sleep analytics and a personal alarm optimize your nightly routine. Lightweight, waterproof, and ergonomically designed, the Sleep A20 redefines comfort and functionality for the modern professional.

## Description

soundcore Sleep A20 by Anker Sleep Earbuds, Noise Blocking Sleep Headphones, Small Design for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Personal Alarm: desertcart.co.uk: Electronics & Photo

Review: Overall, way better than the Bose Sleepbuds II that these replaced! I love them! - I had a pair of Bose Sleepbuds (MKII) for 2 years and loved them for getting a good night sleep, and not getting disturbed by noise. When Bose discontinued them, and my first pair of Sleepbuds died (battery issues), I was gutted as I assumed I wouldn't be able to find a decent replacement. Then I discovered these, and I absolutely love them. They are WAY better than the Bose Sleepbuds in my opinion for an number of reasons: 1. They will work as a normal blue tooth pair of earbuds, and they actually sound great! I often use them for workouts and the likes. 2. The battery life is loads better than the Bose sleep buds for overnight use in sleep mode. 3. The sleep sounds are much more customisable and you can layer different sounds on top of each other to create a custom sleep sound. The flexibility is fantastic. 4. They cost less than half the price of what the Bose Sleepbuds were, but are a lot more feature rich. 5. The carry/charging case isn't unnecessarily huge like the Bose Sleepbuds. It's also nice and light. In addition, the battery life of the case is also much better than the Bose and I can generally get 5-6 nights out of a single case charge before having to recharge the case. (That's with wearing the buds all night long each night) 6. The way the buds go back into the charger case is a better design than the Bose, and I've never had the buds fail to make proper contact with the case (a issue I had regularly with the Bose). 7. The passive noise cancellation (without masking) is much better than the Bose and even with no masking, they do a great job of blocking out the noise. 8. They are more comfortable to wear at night than the Bose. I did get use to the Bose, but these, I forget are even in my ears, and I'm a side sleeper! The ONLY one negative I can report is the "wing" retention system just isn't quite as good as the Bose sleep buds, and sometimes they feel a little loose despite having the largest fitments installed. However I've never had one fall out overnight, it's more they sometimes unseat themselves and I need to reposition them for a better seal against my ear canal. However this is likely a product of my ear shape and the product design, and with all the other positives, I can definitely live with this and have found a position that minimises this problem. Apart from that one minor point, these are absolutely perfect. I love them and take them everywhere with me when I travel. If you're a post-Bose Sleepbud user like myself, I can highly recommend these as a replacement, or more to the point, an upgrade. Full marks to Anker for their engineering on these. They have done a stellar job!
Review: Blocks out a fair amount of noise. Lots of customisation options. - I currently live by a train station, which is the main reason as to why I bought these. They fit snuggly in the ears & block out a good amount of sound. You have 2 different modes available, Bluetooth mode - for music playback & sleep mode. The sound is very good. It's clear & not muddy at all. It has a good amount of volume too. In Bluetooth mode you have your standard controls, Play, Pause Volume up & Down. You can customise which earbud performs a separate function. You'll also be able to download a wide range of sounds, that you can then transfer over to the earphones. The option will only appear in Bluetooth mode under the Sounds tab. There's an option for you to mix 3 different sound types, that can then play simultaneously. (You can modify the volume for each particular individual sound) then save it under a name you can easily remember. It would be great if you could add your own custom sounds from the Internet too. But then I can see why you're not due to copyright issues. Once saved, the custom sounds will transfer over to the buds themselves so you won't need to use your phone. In the settings you can specify the amount of time Bluetooth playback carries on for until it automatically switches over. You can also toggle on or off the different Prompt Tones in the settings, which I think more companies should allow this. ( Righthand corner - Cog icon) So you won't get disturbed during your sleep. The Prompt Tones are as follows: Connection Tones Low Battery Auto Shutdown Notification Tap Tone Mode Switch Notification You'll need to download the Soundcore app to make the most of these buds. It can be downloaded from the Android store or Apple store. Pairing is easy, straight out the box, it will automatically pick up your buds when you take them out of the charging case. As far as Battery Life is concerned the case holds 80 hours worth of charge. With a 14 hours continuous playback. (Sleep Mode) In Bluetooth Mode it's 10 hours with 55 hours with the charging case. I've found the performance of these buds to be very good & very reliable & the Bluetooth connection is very stable if it's walking around or running. They stay connected & are not choppy at all. I've been running with them a few times & you don't get that thumping sound like you would with some other buds. Which I am suprised about considering just how deep these go into your ear cannal. They have not once cut out on me during my sleep. Which is the most important thing. They are very comfortable especially for side sleepers such as myself. Due to how small these are, I've found the controls to be a little tricky to use on the first try. (that's why 4 stars instead of 5) for the most part they are indeed very comfortable but I found to get a bit little bit of ear fatigue. But then your ears are not designed to have a foreign object in them for long periods of time. Also I had an earbud spontaneously stop working but Anker customer service were great with regards to sorting out a replacement pair. But besides the two negatives, these are a great pair of buds, if you have trouble sleeping. They perform very well for what they designed for & are cheaper than some other buds which make them a very competitive choice.

## Features

- Full Night of Peaceful Sleep: Equipped with a range of features, experience our exclusive 4-Point Noise Masking System, Twin-Seal ear tips with 3x stronger Passive Noise Blocking, sound masking, and Smart Volume Control to prevent unwanted noise.
- Ideal for Side Sleepers: Sleep A20 utilizes the combined efforts of soundcore’s Air Wing and 3D ergonomic design—wrapped in an ultra-soft material—for 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, extended to 80 hours with the case. Bluetooth mode offers 10 hours of playtime, with an additional 55 hours via the charging case.
- Peacefully Stream Content via Bluetooth: Curate your sleep soundtrack with a stable Bluetooth 5.3 connection and a customizable white noise library to compose a perfect night's sleep.
- Sleep Analytics for Better Sleep: Using a G-sensor, Sleep A20 tracks sleeping positions and movement through the night. Coupled with a Real-Time Clock, enjoy precise sleep quality analysis and gain invaluable insight into your nocturnal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRGR2TS5 |
| Age range (description) | Adult |
| Best Sellers Rank | 3 in Sleep Earbuds |
| Cable feature | Without Cable |
| Charging time | 4.5 Hours |
| Compatible devices | Phones, Laptops, Tablets |
| Control method | Remote |
| Control type | Touch Control |
| Guaranteed software updates until | unknown |
| Included components | Charging Case ×1, Ear Wings ×3 USB-C Charging Cable ×1, Eartip, Sleep A20 ×1 |
| Item model number | A6611 |
| Item weight | 0.14 Pounds |
| Manufacturer | Anker |
| Material | Silicone |
| Number of items | 1 |
| Package type | Rigid and cushioned packaging |
| Product Dimensions | 2.48 x 1.74 x 1.55 cm; 63.5 g |
| Recommended uses for product | Sleep |
| Specific uses for product | Sleep, Travel |
| Style | Contemporary |
| Water resistance level | Waterproof |
| Wireless communication technology | Bluetooth |

## Product Details

- **Brand:** soundcore
- **Colour:** Beige
- **Connectivity technology:** Wireless
- **Ear placement:** In Ear
- **Form factor:** In Ear
- **Frequency response:** 20 KHz
- **Headphone jack:** No Jack
- **Impedance:** 16 Ohms
- **Model name:** Sleep A20
- **Noise control:** Active Noise Cancellation

## Images

![Sleep A20 by Anker Sleep Earbuds, Noise Blocking Sleep Headphones, Small Design for Side Sleepers, 80H Playtime, Stream Content via Bluetooth 5.3, Personal Alarm - Image 1](https://m.media-amazon.com/images/I/516v44sxogL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Overall, way better than the Bose Sleepbuds II that these replaced! I love them!
*by G***H on 13 April 2025*

I had a pair of Bose Sleepbuds (MKII) for 2 years and loved them for getting a good night sleep, and not getting disturbed by noise. When Bose discontinued them, and my first pair of Sleepbuds died (battery issues), I was gutted as I assumed I wouldn't be able to find a decent replacement. Then I discovered these, and I absolutely love them. They are WAY better than the Bose Sleepbuds in my opinion for an number of reasons: 1. They will work as a normal blue tooth pair of earbuds, and they actually sound great! I often use them for workouts and the likes. 2. The battery life is loads better than the Bose sleep buds for overnight use in sleep mode. 3. The sleep sounds are much more customisable and you can layer different sounds on top of each other to create a custom sleep sound. The flexibility is fantastic. 4. They cost less than half the price of what the Bose Sleepbuds were, but are a lot more feature rich. 5. The carry/charging case isn't unnecessarily huge like the Bose Sleepbuds. It's also nice and light. In addition, the battery life of the case is also much better than the Bose and I can generally get 5-6 nights out of a single case charge before having to recharge the case. (That's with wearing the buds all night long each night) 6. The way the buds go back into the charger case is a better design than the Bose, and I've never had the buds fail to make proper contact with the case (a issue I had regularly with the Bose). 7. The passive noise cancellation (without masking) is much better than the Bose and even with no masking, they do a great job of blocking out the noise. 8. They are more comfortable to wear at night than the Bose. I did get use to the Bose, but these, I forget are even in my ears, and I'm a side sleeper! The ONLY one negative I can report is the "wing" retention system just isn't quite as good as the Bose sleep buds, and sometimes they feel a little loose despite having the largest fitments installed. However I've never had one fall out overnight, it's more they sometimes unseat themselves and I need to reposition them for a better seal against my ear canal. However this is likely a product of my ear shape and the product design, and with all the other positives, I can definitely live with this and have found a position that minimises this problem. Apart from that one minor point, these are absolutely perfect. I love them and take them everywhere with me when I travel. If you're a post-Bose Sleepbud user like myself, I can highly recommend these as a replacement, or more to the point, an upgrade. Full marks to Anker for their engineering on these. They have done a stellar job!

### ⭐⭐⭐⭐ Blocks out a fair amount of noise. Lots of customisation options.
*by M***Y on 15 August 2024*

I currently live by a train station, which is the main reason as to why I bought these. They fit snuggly in the ears & block out a good amount of sound. You have 2 different modes available, Bluetooth mode - for music playback & sleep mode. The sound is very good. It's clear & not muddy at all. It has a good amount of volume too. In Bluetooth mode you have your standard controls, Play, Pause Volume up & Down. You can customise which earbud performs a separate function. You'll also be able to download a wide range of sounds, that you can then transfer over to the earphones. The option will only appear in Bluetooth mode under the Sounds tab. There's an option for you to mix 3 different sound types, that can then play simultaneously. (You can modify the volume for each particular individual sound) then save it under a name you can easily remember. It would be great if you could add your own custom sounds from the Internet too. But then I can see why you're not due to copyright issues. Once saved, the custom sounds will transfer over to the buds themselves so you won't need to use your phone. In the settings you can specify the amount of time Bluetooth playback carries on for until it automatically switches over. You can also toggle on or off the different Prompt Tones in the settings, which I think more companies should allow this. ( Righthand corner - Cog icon) So you won't get disturbed during your sleep. The Prompt Tones are as follows: Connection Tones Low Battery Auto Shutdown Notification Tap Tone Mode Switch Notification You'll need to download the Soundcore app to make the most of these buds. It can be downloaded from the Android store or Apple store. Pairing is easy, straight out the box, it will automatically pick up your buds when you take them out of the charging case. As far as Battery Life is concerned the case holds 80 hours worth of charge. With a 14 hours continuous playback. (Sleep Mode) In Bluetooth Mode it's 10 hours with 55 hours with the charging case. I've found the performance of these buds to be very good & very reliable & the Bluetooth connection is very stable if it's walking around or running. They stay connected & are not choppy at all. I've been running with them a few times & you don't get that thumping sound like you would with some other buds. Which I am suprised about considering just how deep these go into your ear cannal. They have not once cut out on me during my sleep. Which is the most important thing. They are very comfortable especially for side sleepers such as myself. Due to how small these are, I've found the controls to be a little tricky to use on the first try. (that's why 4 stars instead of 5) for the most part they are indeed very comfortable but I found to get a bit little bit of ear fatigue. But then your ears are not designed to have a foreign object in them for long periods of time. Also I had an earbud spontaneously stop working but Anker customer service were great with regards to sorting out a replacement pair. But besides the two negatives, these are a great pair of buds, if you have trouble sleeping. They perform very well for what they designed for & are cheaper than some other buds which make them a very competitive choice.

### ⭐⭐⭐⭐⭐ Fantastic qaulity very easy to use!!
*by K***R on 20 February 2026*

These are absolutely amazing they fit perfectly easy to use via touch control on the earbuds the sound is perfect great value for money with a app thats easy to use aswell as the touch control on the buds. Win win they have helped with my sleep from the first night of use the most comfortable buds you dont feel like you have them in your ears great for side sleeping I would highly reccomend to anyone. I am very happy with this purchase. Thanks

## 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
- MZOO Sleep Eye Mask for Side Sleeper Men Women, Zero Eye Pressure 3D Sleeping Mask, Light Blocking Patented Design Night Blindfold, Soft Eye Shade Cover for Travel, Black
- Loop Quiet 2 Ear Plugs – Ultra-Comfy Reusable Noise-Reducing Earplugs for Sleep, Deep Focus, Travel, Noise Sensitivity | Flexible Hearing Protection | Customizable Fit | 24dB (SNR) Noise Reduction

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-04*