depending on the person, making a pallet on the floor is not that bad.
do bring the air mattress.
star service can bring the necessary linens, pillows, etc to make it more comfortable for you.
it is easy to roll up and place on a chair in the room so you have more space for the daytime.
a rollaway will take up room when not in use during the day.
if you are staying many nights, that $25 per night will add up.
if you are there for ony a couple nights, it wouldn't be as costly.