Another sleep regression post

Nichola
How are you mamas identitying sleep regression?
My little on who previously slept a 10 hour stretch is waking up through the night, it then takes about 15-20 mins to soothe him (just with a head and chest rub, I'm avoiding giving him a feed). He isn't waking up crying, he's in more of a disturbed sleep.
I ask the question as it was his naming day on Saturday which obviously disturbed his routine. Does this sound more like little one just being a bit out of whack rather than regression?