Oo, totally normal yan! Lahat ng babies namin nag-twitch habang natutulog, parang baby startle reflex lang talaga or sleep movements, nangyari rin yan sa aming mga anak at ang pediatrician namin assured us it's just part ng normal development nila. But kung very frequent na or kung may kasama pang ibang signs na weird, better to check with your doctor lang just to be sure, okay?