What was that?

So my little lady will be 15 weeks tomorrow.

About a week ago, she started sleeping poorly and we figured she just hit sleep regression early.

She’s usually a great bedtime sleeper (puts herself to sleep and sleeps 10-12hr stretches). A few days ago it started taking her close to an hour to fall asleep, and even then she was restless and woke up a couple of times for a feed.

BUT, that literally lasted 4 nights. Now she’s back to her usual sleeping pattern.

While we’re happy and relieved, I’m not sure if that was the dreaded sleep regression or not??

Any other babies experienced just a few days of regression and gone back to the usual this quickly?