A white noise machine can be a game-changer for those who have trouble sleeping, and this one from Dreamegg is just $17.99 ahead of Amazon Prime Day ($10 off). It's compact, has a long-lasting battery, and includes 21 different sounds to choose from to help you drift off to dreamland.

Unless you’ve been OOO for the past 24 hours with your phone on DND mode, you’re probably aware that it’s Prime Day. And you likely know that this year the event is four days instead of two. The sheer volume of sales is enough to make your head spin, and the extended time window probably has you wondering if the deals are changing each day.

Our editors rounded up the best Prime Day robot vacuum deals, including savings of up to 50% on top-rated models from iRobot, Shark and Eufy.