I second NM's sentiments. Remember you can have (pretty much) whatever you want so don't be afraid to ask for it! Just by the door they will have a little mini-bar area. I don't think it has alcoholic beverages anymore but they do have water, sodas, fruit, chocolates, cookies, other snacks... don't be afraid to saunter up and sample the goodies! Also if you do get hungry don't be afraid to order up a foccacia sandwich during the night (the options are listed on the menu card). I've found them to be quite yummy.

A handy tip on the Skybeds, there is a little light inside the top of the pod (when you sit there you will understand what I mean) that lights up by touching it - there are three levels of brightness, so keep touching it until it gets bright enough. I find this is a good light to use if the person next to you is sleeping and you want to read.

You will get a nice amenity kit with toothpaste, toothbrush, mints, earplugs, eye mask, socks, skin cremes, lip balm... (I think the men's has a razor/shaving cream as well). So you don't really need to bring that stuff in your carry on if you don't want to. They don't have a hairbrush though so remember to bring that along.

You can't leave anything in front of your feet at takeoff / landing. They make this announcement, but if you want to look like an old hand , you can be prepared.

Have a great trip!