What is sleep? - 3W not napping

Ly

Take a look at our logs for yesterday and today. My 3 week old has only napped maybe 15-30 minutes today (since being up at 9), yesterday all naps were under an hour. Typically she naps for at least two hours. Last night she slept really well once we got her settled after 11,. We are bottle feeding and breast feeding to make sure she’s getting enough and she doesn’t have a fever. Is this a growth spurt or something else? I feel bad because I know she’s tired I just can’t get her to sleep!!