By the power of Photoshop I can edit out the subject of his nightmares and replace it with something harmless and fun. It seems at home he wears a tshirt and shorts, and not even boxers by the looks of it, just fucking shorts - they've got belt loops and pockets.
In the medical bay he's got far cuter pyjamas, button up shirt with a collar and oversized sleeves. And staying in some hotels he gets the nice accidentally-flashes-the-neighbours-while-running yukata.
Lastly he sleeps anywhere, any time, in whatever he was wearing when it happened because sometimes clothes are hard and there was a whole minibar.
They all have their appeals so it's hard to decide between them.