6.5 months, growth spurt?

I don’t remember my daughters growth spurts being this obvious but maybe my son is different, he’s 29 weeks and the past few days he can’t stay awake without yawning or rubbing his eyes for more than 1-1.5 hours! I’ve been stretching it to 2 hours just to keep roughly with our routine. He is taking great naps, 1-2 hours and self settling each time. Also sleeping 11-12 hours overnight with only one wakening for a quick feed! Seem like normal growth spurt behaviours?! Eating solids fine, drinking milk fine and no signs of illness or teeth!