What is the Difference Between Envelope and Mummy Sleeping Bag
                As outdoor activities such as camping, hiking, and trekking grow in popularity, the choice of sleeping gear has become an important topic among adventure enthusiasts. Sleeping bags are essential for comfort and safety, but not all designs serve the same purpose. Two of the most common types are the envelope sleeping bag and the mummy sleeping bag. So, what is the difference between the two, and how should users decide which one to choose?