Mummy Shape Sleep Systems
The Mummy Shape Sleep Systems are systems that have a more traditional torso/hip girth for those that don’t want to fully bring their knees up to their chest inside. These systems are more meant to bend with your legs like a mummy bag. Due to the decreased insulated area, these will be lighter but they do not have the benefit of efficient fetal sleep positions. If you do not use fetal position, these systems will be warmer / more efficient for you.