Breastfeeding Q

How long can breastfed babies go without a feed for ? ESP in the night? Can exclusively breastfed babies sleep the whole night without ever getting up for feed? My daughter who is 14 weeks was last fed at 6:30pm , it's 1:30 am now and she has still not woken up for a feed. Is that okay? Should I wake her up and feed her since it's been this long since her last feed? I'm an FTM please advice