A few things worth considering on this redeye:
- The block time (gate to gate) is 3h 35min. Pretty short, and then...
- You can't recline before the seat belt sign comes on. Neither when you're about to land. Sure, 737s don't have supreme recline in J, but... advantage to those who can fall asleep in a comfy office chair.
- Noises will include the usual pre takeoff affairs (including safety video), announcement when the seat belt sign is switched off, captain's report, prelanding reports and PAs (gotta love it when the captain gives their PA and starts with, "Good morning passengers, this is your captain speaking, I trust you've been able to get some rest...")... then the clacking of the catering trolley and CSM offering anyone awake a meal...
- Tailwinds typical of West-East travel can cut the time in the air down even further.
PER-MEL is one of, if not the, most blistering redeyes, certainly within Australia (perhaps one of those ex-DRW ones might be a contender too). I hope you're not doing anything too important upon landing! Food onboard certainly means very little on such a flight, unless you are truly time poor, famished or maybe you've decided to power on without sleeping (maybe suits someone who's just got out of the clubs or pub from the city and heading right over to MEL then crashing out).