Yes, waterproof sleeping bags are definitely a thing and can be purchased in stores! Their outer shell makes them resistant to water since they are made from waterproof materials to block moisture and keep the sleeping bag dry in rainy or damp conditions. These waterproof sleeping bags are commonly used in wet and humid environments to help you stay dry and comfy during nighttime, especially for campers who need to keep their sleeping bag and other gear dry when travelling in wet conditions. Even if your sleeping bag is waterproof, your other equipment must also be waterproof so that it remains dry whenever you camp in wet areas. Not only does it make your camping experience easier and more enjoyable, but it also protects you and your gear from getting wet on your trips. A sturdy outer shell, high-quality insulation, and breathable interior lining are key features you should remind yourself of when you decide to buy a waterproof sleeping bag. An excellent waterproof sleeping bag will help to keep you warm and dry even if its wet and humid outside.