Each astronaut has a personal hygiene kit with selected products for cleanliness, grooming, and comfort. Some crew members sleep better when they wear ear plugs and a mask to block ambient noise and light. These ear plugs from John Young's sleep kit were returned from the first Space Shuttle mission (STS-1, Columbia) in 1981.
NASA transferred his sleep kit to the Smithsonian after the mission.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.