After spay instructions

So little Noel was spayed yesterday morning. She is 2 years old and 6.5 pounds. She seems fine besides being less active and very cuddly. We got 3 days of pain meds and by some miracle she took this morning's pill without protest. I am home today and we'll be home all weekend so we can keep an eye on her. She's happily cuddling with me and occasionally takes a vigorous bath (including her naked pink belly!) to rid herself of the weird vet smell. LOL She is leaving her incision completely alone and it looks great.

The one thing that concerns me is that when we picked her up, the spay clinic told us to keep her quiet and confined in a large dog carrier or bathroom for 10 days when alone. Ummmm...what?

I have had several lady cats and beyond a few days of quiet (and careful watching of the incision) I haven't ever done this. I have never had a cat with any sort of problem arise from letting her have run of the house after being spayed. Sticking the cat in the bathroom every day while we're at work/school for 2 weeks seems excessive. Is this really necessary?

I never did it either but I do understand it.  They are being very cautious, it''s so kitty doesn't do a lot of jumping on things and racing up stairs.  Like I said I never did it.  I think once a kitty is off pain medication it isn't really necessary, the pain will limit the things that she does that could cause damage.

Seems a bit over the top to me. When i have my feral cats spayed I only keep them 12-24 hrs unless they aren't eating or going to the bathroom. I think if she seems fine there's no reason to confine her like that. 

I usually keep my spays in one room (my bedroom generally) and away from other active cats that might encourage her to play or run.  After a few days, they can be in the shared space, but when I'm away, I feel safer knowing she's in the bedroom and not the room with the big cat trees.  You know your cat.  The vet instructions are broad, to cover all types, and also protect the vets from any blame should the cat climb a cat tree and pull her stitches.