I have a cool, but not so scientific idea. When you take a bed to space, it says you might die of oxygen loss. My suggestion is if you have some kind of Oxygen Sealer, or Oxygen Bubble Distributer, then you should be able to sleep with still a risk of oxygen loss. It would be one of those, "Do at your own risk" kind of things. It might not seem good, but:
- You'd sleep though a good chunk of time
- It would decrease the need for desh.
- It would be entirely the player's decision, and
- You wouldn't entirely die, because...