I got into the way of long - 4 hours - daytime bookings when I saw that my last, much-missed, now-retired Regular didn't offer Overnights. When I asked why not, she - usually an archetypal daughter of the White Rose county - replied that, if I wanted to lie in bed for much of the night listening to her breathing, "we could do that", but she'd feel a bit uneasy taking money from me for that purpose!
She said she was sure I'd enjoy a 4-hour daytime booking, a substantial part of which would be spent actually doing what I'd crossed the Pennines to do. And that is how we spent much of all subsequent bookings till she retired. It felt like a proper GFE because she'd make us a cuppa on my arrival and I brought with me a couple of M & S butties for a brief half-time break. And before any of the more prurient of you ask, "No; we didn't change ends at half-time!"
I'm still "auditioning for her replacement", but never for more than an hour at a time. Once I find a suitable replacement, then I'm sure that before too long, I'll be suggesting longer daytime bookings.
I'm sure that model wouldn't work for everyone; but when you've only got the stamina of a 71-year-old [as I was when she retired], . . !