Warning! Hazardous Radiation!
The universe is not a friendly place. You must bring your own air to breathe and you should protect yourself from the high-speed micrometeorites flying around all the time with a robust shelter. Both problems can be solved to some extent with space capsules or stations, which nowadays offer pleasant, albeit expensive, accommodations (palatable food, bathing facilities, toilets, and private sleeping quarters). Although a hotel bar still needs to be sent up, these should make your stay bearable for a short duration.