Get the latest Science News and Discoveries
Apollo 11 astronauts had to sleep on the cold lunar module floor but astronauts from Apollo 12 on were provided with adjustable hammocks which helped reduce the cooling effects of contact with the cabin floor
None
Or read this on r/Space
/cloudfront-us-east-2.images.arcpublishing.com/reuters/M2WZPOZY4VMDLOUJX4O55VJ7MY.jpg)