I think you are better off asking these questions of the lady you are planning to book with. BTW, I would definitely not recommend doing an overnight appointment with a woman you have not already seen and have a good connection with. As far as room service, do I really need to mention here that a gentleman always pays for everything?

First, you should expect to pay for everything.  Everything.  

Second, the overnight can be a sex filled experience with the right partner, but have you had experience with this provider?  If you're looking for multiple engagements, is she the type that really likes what she does, or is she going to be doing it because she's getting paid?  You need some experience with her.  

I've had overnights with several providers, and I can say that you can probably expect a pre-dinner and post-dinner pop, lots of cuddling, and a morning pop, or at least try for it.  Depending on quality, chemistry interest and stamina, this could go on for hours or minutes.  

The key to this is to know the provider and have a relationship with her.  I wouldn't do this without having seen someone at least a couple of times.

snoring.  Seriously.  Of the ten or so women with whom I have done overnights, snoring is a regular feature for at least some part of the night with at least 2/3 of them.

It's still worth it, but you might as well know.

By the way, you probably snore too, so it's a two way street.

I concur with a lot what has already been said. Definatly do it with someone you have had a few sessions with only.You pay for meals drinks tranportation etc. Be very candid in correspondences with the Lady prior to the meeting as to what you both expect and be comforatble with.
I have had a   few overnights, some very good and one disaster.

I love doing overnights! I prefer longer engangements vs. the short 1 hour,blink your eye and it's over...It's much more comfortable when I've previously have met the person...but there have been times I've spent the night with a first time client....either way they have always been alot of fun!!!