Before finally deciding to invest in this, I switched so many types of ear plug for sleep (I live right above a super busy road and the building is like 50 years old so the noice insolation is very limited...). But A30 is just perfect! I like to listen to some podcast to help me get to sleep (so ear plugs can't help). A30 is just like airpod but with more sleep functions. and the shape, i can sleep on my side however i want, doesnt feel a thing. highly recommend!! the active noice cancellation is great too! (ofc not as great as airpods but definitely more than enough for night time environment. so i say go for it!!