Punky hardly ever slept longer than 45 mins in the day (when she would sleep at all lol) but has been gradually sleeping a little bit longer over the last few days.

IMO every bub is different - like adults - some need more sleep than others & if she is happy when she is awake & healthy then I don't see a single thing wrong with shorter day sleeps!!

Hope you get a little longer at night though hehe.