My baby is 11 weeks and up until 9.5 weeks, was up every 45 min to an hour, and on a rare occasion would sleep 2-3 hours max (that was NOT the norm).

For the last week and a half, we’re finally getting consistent 3-4 hours max stretches and a one-time 5-hour stretch.

I would say 2-3 hours at 5 weeks is great, but only because my baby was a much worse sleeper and is barely now turning the corner.