Possible answers:
*Pick a theme! There are so many themes to choose from. Themes can be pretty much anything; from tv shows to winter.
*If your mom doesn't like the guest space, or has a hard time staying up at home (or has kids) then you can opt to hang out in a separate room. No one likes sharing a room, and the house is pretty private.
*This way you won't have your friends finding out where you sleep. If you are a strong swimmer, your party will be much more fun and you won't need to share the bed.
*Plus, it creates a nice cozy spot for them. This is not to say they should sleep in only your bed.Choose from options above and answer: What most naturally follows?

How to have a birthday sleepover at a hotel
Ask your parents!
It's up to your parents if throwing a hotel slumber party is in their budget. It's a good idea to have your parents sleep in the room next to you and your friends. Getting an adjoining room would be a good choice.
Answer:
Pick a theme! There are so many themes to choose from. Themes can be pretty much anything; from tv shows to winter.