I have a booked a superior room for 4 nights in Dec this year. I was earlier planing to visit with my wife only. Now i plan to bring my 2 kids (3 year old daughter and 11 months old son ) along. Is it possible to get an extra rollaway bed set up in the room for my daughter with my son sharing the existong bed with me and my wife? And would there be any extra charge for this and how much?