I'll pencil you in on the Be Our Guest list we keep on Page 1, Post 15. Beach Club?
The sleeping arrangements for 5 adults in the room will be two queen beds and a daybed (which is very comfortable). In very rare situations, if all daybed rooms are booked when you check in, you may be assigned to a room without a daybed, but a rollaway cot (fairly comfortable) would be provided. But with 5 adult-sized humans, you should get a daybed room.
I'll defer to others on the villa questions (although you will find some discussion/comparisons in Post 16 of the thread). The remodeled villas just started allowing 5 to a room, with the addition of a pulldown or trundle bed in the rooms (check out Post 10/11 for pictures and info about the villas).
Speaking of the first page in the thread- we try to keep it updated with all of the info from this ginormous thread so that it isn't necessary to read every post. Start off by looking there, especially the first post, which has a table of contents, Post 13 FAQ and Post 14 Other Useful Info to give you a quick introduction to the resort.
Will do!!!