Advantages and disadvantages of gourd sleeping bags

Advantages: shaped like a gourd, narrow at the top and wide at the bottom, generally designed with a round bottom. It can be regarded as an improvement of the envelope sleeping bag. The neck is narrowed to prevent the baby from slipping out of the sleeping bag or getting into the sleeping bag. The bottom is round and large, allowing the baby's legs to move freely and increasing the baby's comfort.
Disadvantages: Due to the change in size, this sleeping bag cannot be used as a quilt after opening, which reduces the use efficiency of the product