Noise is moderate, you will be given a kit anyways with ear plugs, combine that with eye cover & noise cancelling headphones should be fine.
Pop in two melatonin 5mg right after takeoff and you are good to go.
You can always have your meal later. I am not sure on TATL if they are willing to serve you dinner for breakfast though.
For red eyes in J I always eat on the ground, unless I am suffering insomnia.