Oh, wow, that's amazing! Dubai is one of those places I have long wanted to visit, so, super excited for you on a "selfish" level as well as "yay thing you've wanted for a while"!
Surviving the plane ride: Dress in layers. Since this is pleasure and not business, you probably won't need to wear clothes that are "businessy" on the plane, so also dress with an eye for comfort and comfort alone. If you can squeeze one or more "soft squishy things" into your carryons, DO IT, and array them strategically in your seat, and move them around as you need to. Under the heading of "dress in layers" is clothes that you can use as pillows or blankets so that you won't have to rely on the airline ones (sweatshirts and similar are awesome for this). Drowsifying antihistamines are a great call, as are noise-cancelling headphones, especially if they provide at least some cancellation when they're turned off for takeoff and landing; I find the sooner I get to sleep the better on a plane. Books and other entertainment media are of course a must, as are chargers for them--- you may be able to charge things on the plane, and definitely take advantage of that. Do walk around lots if you're not sleeping/sleepy. That's about all I can think of.
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Surviving the plane ride: Dress in layers. Since this is pleasure and not business, you probably won't need to wear clothes that are "businessy" on the plane, so also dress with an eye for comfort and comfort alone. If you can squeeze one or more "soft squishy things" into your carryons, DO IT, and array them strategically in your seat, and move them around as you need to. Under the heading of "dress in layers" is clothes that you can use as pillows or blankets so that you won't have to rely on the airline ones (sweatshirts and similar are awesome for this). Drowsifying antihistamines are a great call, as are noise-cancelling headphones, especially if they provide at least some cancellation when they're turned off for takeoff and landing; I find the sooner I get to sleep the better on a plane. Books and other entertainment media are of course a must, as are chargers for them--- you may be able to charge things on the plane, and definitely take advantage of that. Do walk around lots if you're not sleeping/sleepy. That's about all I can think of.