Ahhh, the sound of silence. Haven’t heard that in a while? Neither have we. But thankfully, Amazon has the Big Red Rooster White Noise Machine on sale for just $15 with the on-page coupon — down from ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more When you really need in need of a good night's sleep, there's nothing more irritating than lying awake ...

When you really need in need of a good night's sleep, there's nothing more irritating than lying awake noticing every little sound, from cars passing by to your neighbor's music to your pet's midnight ...