I asked an audiologist how white, pink, and brown noise influence your brain – and how you can use them to improve sleep, focus, and relaxation.

That was until the student came across a 12-hour YouTube video featuring brown noise. Every night, she now plays the sounds on her phone as she curls up in bed and is lulled to sleep by a noise ...

There are eight sounds to choose from which allows you to experiment and find which one works best: Waves, birdsong, rain, car journey, spaceship, white noise, pink noise and brown noise.

There are many types of noise to help with sleep. The big three in sleep sounds are white noise, brown noise, and pink noise, ...