Here's what experts think about the sound and its potential benefits for people who have insomnia or sleep troubles.

Pink noise has recently become the darling of all the sleep sounds, presumably due to the fact that recent research has shown pink noise can increase time spent in deep sleep and improve memory.

From using your Apple Watch to track your sleep habits to not using your phone before bed, there are many things ... including blue, brown, and pink, with white noise being the most well-known ...