1 month old sleeping more?

Hey ladies, its been 12 years since my last baby so I don't remember anything. My baby will be a month old on Friday and today out of nowhere she's been extra sleepy. She usually wakes every 2 hours to eat but today has been sleeping 3-4 hours and then nursing for 30 minutes and repeat. Is this normal? Is this a growth spurt? She doesn't have a fever and is peeing and pooping like normal. I haven't slept because I was scared there might be something wrong with her 🤦