Awake time between naps for 5 week old?

[hanflan]

My DD has just turned 5 weeks old and I am wondering how long your babies of the same age are awake for between naps in the day? My DD wakes for feeds roughly every three hours, then I feed, change her nappy, we have some smiles and chats while she is on the changing table, but then she starts to cry and get fussy again within about 45 mins to an hour of her waking up. Should she be going back down for a nap at this time?! I have no idea what her sleepy cues are as she seems to go from smiling to crying within seconds haha.
Another question is that she is waking for feeds every three hours, apart from in the morning! No matter what I try to do she seems to sleep for the longest between 5am and 9 or 10am! The other day she slept for 6 hours before I decided to wake her at midday for a feed! Should I let this be, or is there something I can do to help shift this long sleep towards the actual night time? Thanks for your help!

Tbh even an hour is a long time at that age. DS (and dd before him) would have max 45 mins if not 30 from waking to next being swaddled and put down.

One of mine probably did about 45 minutes awake time at that age and the other about 15-30 minutes.

I would wake every 3 hours for a feed between 7am-7pm and let her sleep as long as she likes between 7pm-7am.

I always lifted to feed e ery three hours in the daytime though.

Work on the basis that if baby is not feeding, she should be asleep or trying to get to sleep for the first 6 weeks. I would be unlikely to get more than 30 minutes of awake/happy time up to 12 weeks. Any amount of grumble means either feed or sleep is needed.