Orion has no fold‑down bunks. Each crewmember uses a personal sleeping bag that they secure anywhere in the cabin they find comfortable. Because there’s no “up” or “down” in microgravity, crew can mount bags to seatbacks, along cabin walls, or even oriented through the tunnel — pilots and commander will likely sleep in their seats while others pick wall or tunnel locations.
The sleeping bag has a head opening and a forehead strap to help keep the head stable; the main challenge is controlling floating limbs, so astronauts keep their arms tucked inside the bag or secured. Bags are tied off to nearby attachment points to prevent “sleeping bumper cars” and to keep crewmembers close to the toilet if needed. There are no built‑in curtains for individual berths, but a unisex privacy curtain is available at the toilet.
Sleep is scheduled and treated like on Earth: about 1½–2 hours of pre‑sleep time to wind down, a full eight hours of sleep, then an hour‑and‑a‑half to two hours for post‑sleep morning routines. The bags and tie‑offs provide enough restraint and a blanket‑like comfort so crew don’t have to rig bungees on themselves.
Orion’s interior is compact — roughly the space of two minivans for four adults — so every centimeter is planned: food is rehydrated or warmed in a small heater panel, water is accessed via a floor panel, and exercise and storage are tightly packed. The sleeping approach emphasizes flexibility and individual preference, with each astronaut choosing and sometimes rotating their sleep location during the mission.