Would you let OOT friends stay at your house after wedding?

We are having quite a few OOT family and friends come to the wedding. FH's best friend and his girlfriend live in Vancouver. FH is paying for their hotel stay as the ticket prices are high. We don't know how long they'll intend to stay. I have a good friend in California coming. She wants to come in on Saturday and fly out Wednesday night. My house is small with 2 bedrooms and 1 bathroom. I know FH rarely sees his friends and same goes for me. Would you extend an invitation to either? I have a twin air mattress but would have to spend money on a queen air mattress, additional pillows, mattress pad and a bed set. I think it's cheaper if I helped out with a night for his friends which would be $139 instead of spending money on those things. FH would prefer his friends stay a night after the wedding and my friend stay a night after they leave, but again I don't know when that would be. Nor do I think it would be fair to have my friend stay at the hotel the whole time. What would you do?