The Soundcore Sleep A20 earbuds are designed to be stable and comfortable in the ear, especially for use during sleep.

- They feature a 3D ergonomic design that moulds to the natural shape of the ear and distributes pressure evenly, ensuring pressureless comfort.
- The earbuds come with three different sizes of ear wings and interchangeable ear tips (sealed or breathable) to find the best fit for your ear.
- The Air Wing design and ultra-soft materials ensure that the earbuds remain stable and comfortable even when worn sideways.

Therefore, the Soundcore Sleep A20 earbuds are less likely to fall out after a few movements, especially if they are positioned correctly and worn in the right size.