Most people are familiar with white noise, that static sound of an air conditioner that lulls us to sleep by drowning out any background noise ... pink noise, or brown, or green, or blue.

Can White, Pink, and Brown Noise Help You Sleep? For some people, the grainy static sound you hear in white noise can improve sleep. It helps by masking the background noise and tuning it out.

In recent years, videos and playlists of brown noise have gained traction online, attracting millions of listeners. Different types of static noises are named after colours, and white, pink and ...