Help with night feeds

I’m a new mum and me and my husband are handling baby’s night sleep together. There’s a couple of questions which i would like to ask… 1) when its time for feed and baby is still sleeping, do you wait for baby to wake or just wake baby up for the feed? 2) baby doesn’t like to latch and is drinking every 3 hours. Managing my 3 hourly pump at the same time while preparing for baby’s bottle feeding is stressful. What should i do to better manage this? 3) when does the feeding interval increases? From 3 hourly to longer? #1stimemom #advicepls #nightfeed