You’ll rest better throughout the night when you hold the Sleep Rock Natural Sleeping Aid. It’s a completely natural product with an internal heating element that maintains a constant 104º F temperature. This helps you stay warm and comfortable all night long, though you can turn it off if you prefer not to use it. But that’s not the only way this natural sleep aid helps you hit the hay. It’s hard to turn your brain off after a long day at the office as tasks and to-do lists run through your head. Plus, you know you shouldn’t keep playing on your phone before bed, but it’s a tough habit to kick. At about four inches tall and seven ounces in weight, this device satisfies your primitive need to hold something throughout the night. That’s because its rock-like surface texture is reminiscent of a Stone Age protective tool.