Well, I did see something about how astronauts lived aboard the space shuttle, and in space centres, when I was in the museum of Ottawa.
The toilet they had, was just a plastic bag being sucked down through a hoop. There was vacuum suction into the hole. The astronauts 'did their duty' in the bag, which was saved and ejected upon reentry into orbit.
How did they wipe themselves? Bidet.
There was one mission, I think it was one of the Apollo missions. They had to abort it because their toilet backed up. The astronauts were covered in their own feces and urine, and were forced to abort.
How they slept was interesting. There was sort of a bag or a tube they crawled into that just kind of locked their bodies into position. Apparently everyone has the same dream the first time they sleep weightless. They are armless, legless embryos floating helplessly in a womb.
Also, feces? Fedo, he eats everything!