They weren't in those seats for 19 hours. Shortly after undocking they were able to take off their suits for the night. Didn't have to put them on again until

They weren't in those seats for 19 hours. Shortly after undocking they were able to take off their suits for the night. Didn't have to put them on again until the re-entry prep started. Most of that 19 hours they were free to move around the cabin.