Previous versions of the Soundcore Sleep earbuds blocked external sounds passively using just a snug fit inside the ear, but the new Sleep A30 finally add ANC while still offering enough battery life to last the night. At $229.99, the Sleep A30 are quite a bit more expensive than last year’s $149.99 Sleep A20, but the earliest Kickstarter backers can get the A30 discounted to $139. The Sleep A30 are slimmer and smaller than previous versions, potentially making them more comfortable to wear overnight. Image: AnkerThe Sleep A30 earbuds are now 7 percent slimmer and feature a smaller design that ensures they don’t protrude from your ears so there’s reduced pressure while wearing them and laying on a pillow if you’re a side sleeper. Anker claims the new Sleep A30 block up to 30dB of external noise, but the added ANC, which uses two mics positioned inside and outside your ears, does result in reduced battery life.