Insomniac

She just won't go to sleep.

It's not because she doesn't want to - it's because she can't.

She has insomnia.

Which is a noun; it means to have habitual sleeplessness, or the inability to sleep.

How long Amelia Mae Crawford has been a perpetual insomniac, she doesn't know. It's just been so long since she got any good sleep.

That said; how will she feel when a true promise of sleep is presented? An eternal, everlasting, and permanent sleep?

There's someone who wants Amelia to go to sleep - the only problem is, she isn't sure that she wants to anymore.

Not with him around, anyway.