One can't help but wonder how the delicate sensitivities of RAF personnel regarding their sleeping conditions might affect their demeanour on board a ship lurching around in a sea way while subject to the ambient noise of propulsion machinery, generators, various pumps, rotating antennae, active sonar, AC plant, loudspeaker announcements, aircraft landing on deck and slamming hatches.
Mind you, personnel serving in ships tend not to turn off the lights at 1600 and go home for tea, stickies and all night in.