Anker A6611Z21 Sleep A20 earbuds Bluetooth 5.3 14h 80h case

Side-sleeper earbuds

The Anker Sleep A20 earbuds are designed for side sleepers who need earphones that stay comfortable all night. An Air Wing structure and 3D ergonomic shape wrapped in ultra-soft material remove pressure points when the head rests on a pillow. Twin-seal ear tips in sealed and breathable variants provide passive noise blocking without active noise cancellation. The set suits anyone who wants audio while falling asleep but cannot tolerate traditional in-ear or over-ear designs.

Battery through the night

Sleep mode delivers 14 hours of continuous use on a single charge and the charging case extends total playtime to 80 hours. Switching to Bluetooth streaming reduces the bud runtime to 10 hours with an additional 55 hours stored in the case. A full recharge of the depleted buds takes 2 hours. The combination covers multiple nights without needing a wall outlet, so the earbuds remain ready for consecutive evenings of masking or streaming.

Light weight and Bluetooth 5.3

Each bud weighs 0.11 pounds, keeping the load on the ear minimal during long sessions. Bluetooth 5.3 maintains a stable link for streaming custom white-noise libraries or other content from Android or iOS devices. A MEMS sensor tracks sleep data while smart volume control prevents sudden loud passages. Passive isolation handles environmental noise instead of active cancellation, so power draw stays low and no electronic hiss is introduced.