Questions for ‘Here’s how a new sleeping bag could protect astronauts’ eyesight’
![a photo of a man sleeping on a hospital bed, his lower half is encased in a cone](https://www.snexplores.org/wp-content/uploads/2022/02/1030_LEM_sleeping_bag_eye_protection.jpg)
Study co-author James Leidner, a medical doctor, spent three nights in this high-tech sleeping bag. The invention eases pressure that can be caused by a fluid buildup behind the eyes. During long space flights, that pressure can lead to vision problems.
UT Southwestern Medical Center