Newborn snorting noises

My LO is 3 weeks old tomorrow. I'm curious as to if any other Moms have experienced their LO making grunts and snorting noises when they lay in their bassinets/pack n plays.... He doesn't have any snot or anything that I can suction out. He just grunts and makes pig noises kinda... Is this bad? What do u do about it?