Make your luggage
What is essential for your holiday in Sinai: 
(usually you can bring up to 15 or 20 kilos of weight)
- passport
- money (to change in the airport, exchange rate is everywhere the same)
- light clothes (better if in natural tissues or cotton)
- some more layers / jumpers and long trousers in case of an excursion to Moses Mountain or to the desert
- sleeping bag in case of long stays in desert/ mountains
(on the coast you have hotels, camps or huts)
- slippers + tennis shoes or trekking shoes
- some socks, normal underwear
- a jacket if you go in winter
- sunglasses + a cap
- sun-protections
- a towel for the beach
- bikini, swim-suit, from December to April also a skin-suit for cold water
- fins, mask, water-shoes
- hydrating cream, normal toilette-products, hair removal cream for the ladies
- spray for mosquitoes
- some small medicines-kit
- lip balm.
You can find all these things in the shops and supermarkets of Dahab too.
What you cannot find: good hair removal cream. Good wine and spirits, pork meat, good cheese, good ice-creams.
For any need, in the chain “Metro” in Sharm El Sheikh you can find almost any sort of imported products.
Pharmacies: I would always suggest to find the medicines for local diseases in local pharmacies and not in a different country used to different problems and different bacteria and parasites.