How can I ensure that my leather jumpsuit is breathable and comfortable for nighttime wear?

[stellacook]

are there any health risks associated with sleeping in a leather jumpsuit?

[coyote 1]

I cannot swear by this, but I really do not think that there are any known health risks. I have been sleeping in or on leather or leather with the hair still on the skin (fur). For the better part of my life. In fact, it has been proven that babies sleeping on animal fur are far less likely to develop raspatory problems, such as Assma. For centuries people wore leather as the main form of clothing. Leather/fur does not tend to hold onto the human sent of perspiration.  But yes, you can ruin it with other bodily fluids.