I got lucky with an early time slot, but needed to book two rooms.  I got one queen/queen room for my party, and by the time I managed to start booking our second room, there were only king rooms left.  Booked the King room assuming a queen sized air mattress can be put in somewhere on the floor.  Is this feasible or should I tell the party of 4 sharing that room that they need to bring two twin air mattresses?  I've never stayed there before in all my years going to Gencon.

How do you book two rooms with one timeslot?  I thought it was only one booking per badge purchaser.

I have 7 badges purchased for my party. You're entitled to an additional room booking for 3 people, 5, 7 etc. So I could book 4 rooms.