No, I watched you sleep for an hour because you are very handsome when you sleep.

[She is nothing if not honest. Also warm. Also settling down over him because holding herself up isn't as comfortable as just draping herself over him, and she's probably light enough that it's not a massive burden on him, anyway.]

And also because you watched me sleep last night, I think. Or at least saw me when I was close to it. Fair is fair.