A sleeping pad is a portable cushion used for added comfort and insulation while sleeping outdoors, especially during camping or backpacking. It is typically made from foam, air, or self-inflating materials, providing a barrier between the ground and the sleeper. This helps to keep warmth in and moisture out, enhancing the overall sleeping experience. Sleeping pads come in various sizes and thicknesses, catering to different preferences and needs. Some popular types include closed-cell foam pads, inflatable pads, and self-inflating pads. Choosing the right sleeping pad can significantly improve sleep quality during outdoor adventures.