6 month old sleep change

J

My 6 month and 1 week old used to wake 1-2 times a night to feed, the last 5 nights he’s been waking up 3-4. Doesn’t matter if I feed him solids one time a day, twice a day. If I offer boob more often during the day he only drinks 3 mins.

Any idea what changed? How to go back?

TIA