What the...?

For the last few days a 30 minute nap has been sneaking in as the first nap of the day. It didn't bother me too much as we were still getting a 2hr nap at lunchtime and 1-1.5hrs in the afternoon. Then today we have had 3x 30 minute naps! Ugh! She is able to stay awake 2hrs between each one and I have literally got nothing done!!

It seems late for the 4mth regression, no? Do you think that's what this is or is this the new normal until naps start consolidating around 6mths? I thought we had already consolidated as we haven't had 30 minute naps since she was about 10wks.

Edited to add: Yesterday morning I decided to leave her to see if she would go back to sleep...she just looked around peacefully for another 30 minutes but didn't show any interest in going back to sleep!