Prossies are for sex, not company (in my opinion). If I were to fuck the prossie for all 12 hours of the overnight (a la Hendrix) then it'd be good value. Otherwise, paying a prossie to sleep? No thanks.
I guess some men are, really, really lonely and receive no affection from a woman, be they attached or not? So perhaps there's a degree of mental comfort in it for them? That is, having a woman in the same bed? As it's all fake, I do find that strange and ridiculously expensive. Paying a woman to sleep!? Talk about a fool and his money....
I prefer the fucking for 12 hours route or through the night at least thanks. Now that is money well spent, if at preferential rates, as I've done.
A better alternative is to pay for a late might booking of say an hour, fuck her, she leaves, you sleep and then book somebody else for the morning.