I am wondering how long the anesthetic after a C-section can go on having an effect.  The anesthetic was administered to Felicia at around 22.15 last night.  It is now 8h (next morning), and both mother and puppies still seem groggy.  The pups are not nursing like pups normally do.  They look strong and healthy, though, and they don't cry.  I don't remember everyone remaining groggy for quite this long before.

As we've had our fair share of C.Sections, my experience is that mum quite often is up and alert when I pick her up and ditto with the puppies, but will often zonk out again once home and in familiar surroundings.   Actually I like this because it gives me a chance to latch all the puppies on so they get a good innings while mum is basically out of it.  I'd not want to see the puppies 'groggy' to be honest and certainly would be concerned if they are not nursing vigorously.   Mum maybe because she has had intrusive surgery at the end of a pregnancy.   And again it allows some healing to begin if she's not up and moving around.  Within reason!   I remember one who was alert enough to walk to the car but by the time we got home - 10 minutes away max - she was out of it to the point I had to carry her indoors (such fun with sheet ice on the ground and a 'dead-weight' Basset!! ), get her settled under the heat lamp and go back to the car for the puppies - at which point our estate agent arrived armed with Christmas cheer (this was Christmas Eve!).   I'm afraid I was rather less than receptive at the time but I think he understood, and made a hasty exit.

I'd at least put a quick call into my vet (experienced mentor?).   Do you know if it was a protracted operation?   Perhaps they had to give her a fair wack of anaesthetic as opposed to the light dose normally given for C.Sections - in and out and sewn up fast.

When my girl had a c section to deliver her last 2 puppies, having naturally whelped the first 7. She was totally back to normal once we were home, jumped straight in with her pups and took over feeding them. I'd get back in contact with your vet.

My giant breed (very known to struggle under anaesthetic) was back round and wide awake (after a 48 hour 1st stage resulting in section) within 15 minutes of waking from surgery. The puppies weren't at all sleepy.

Unfortunately the mum had (unrelated) surgery 17 weeks later and she was the same, bounced back immediately and trying to keep her calm was our biggest challenge.

I found out yesterday why my newborns were acting so "strange".  It wasn't the anesthetic.  They were TOO HOT!  Normally I never put a heating source into the box with mom and the puppies, but on Saturday night I did, as I thought it would be comfy for them all after the OP.
I left it in there (on low) most of yesterday, and then I decided to remove it late yesterday afternoon.  The whole scene changed immediately!  The pups started to act completely normal!  It had simply been too hot to stick around Mom much and nurse all together.  I had noticed that they seemed to be nursing individually, which I found strange.  Since I normally never use a heating pad (I have modern floor heating in my house), I just didn't recognise the symptoms!  I weighed the puppies several times yesterday, and they were gaining!  This kept panic at bay, and then, once I had discovered the root of the strange behavior, all was well!  Live and learn, right? 

  sorry but I had to smile at this!!   Another clue about being too hot - puppies tend to lie around separated, often panting slightly too when it's too hot in the bottom of the box.   When, on the other hand, it's too cool, they will snuggle together and against mum for her heat.    If I'd had the brood lamp too low, our pups often took themselves off under the pig rail.   I always had a thermometer in the base of the box to check the ambient temperature was right.