All adjustable bases make some noise. There’s no way to make a bunch of moving metal parts totally quiet. However, there’s a pretty big range for how quiet or noisy adjustable beds are. If you sleep alone or have a partner who sleeps deeply, then you may not be bothered by a noisy adjustable base.
However, if you’re in a situation where you need your bed to be quiet, you might want to be more careful. Virtually all adjustable beds are going to claim to be quiet. So the best way for you to know if they actually are is by reading customer reviews.