Sleep regression??

Abby

How do you know when your baby is going through sleep regression?? My son sleeps around 11 hours at night with 3 naps during the day

I do have troubles with him sleeping during the day because his naps last 30 minutes but not sure if that’s sleep regression

Someone help.. I’m not sure what signs I should be looking for, I just hear everyone say it’s a tough time and I want to be ready for it when it happens