I think it's possible that the first one was real and the last 2 were false awakenings. It's also possible that the first one was a false awakening, the second one was real, and the third one was a false awakening. It's also possible that the first 2 were false awakenings and the last one was real. It's also possible that all 3 of them were false awakenings.

I really don't think there's enough information to know which one was real and which one was fake.