Need some help, did she fall asleep or ignore me?

Anonymous
OK so I've known this girl for awhile but just started really talking to her and getting to know her for a couple weeks. Mostly over text because under normal circumstances we don't see each other that often. Last night I was texting her and we were joking around and having a lot of fun and I said we should hangout sometime, about 20 minutes went by and I didn't get a response (has happened a few times before and just sending another text carries the conversation on as usual) so about 20 minutes later I sent another text basically same thing but in question form this time something like "i think it'd be fun what do you think?" and no response to that one either. So I don't know if she didn't like the idea and didn't want to deal with it right then, or maybe she just fell asleep because it was getting a bit late, about midnight. My question is what's a girl do/say if she doesn't want to hangout? And should I text her and ask about if she fell asleep or what she thinks again? And if so what would be a good thing to say.. I'm a bit confused about how to go about it, and I like her a lot and I think we would both have a lot of fun too. Anyway any advice would be great, thanks!
Need some help, did she fall asleep or ignore me?
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