Simple Joys by Carter'sToddlers and Baby Boys' Snug-Fit Footed Cotton Pajamas, Pack of 3

Are these fleece pajamas or light weight?

How can you label this? I need my kid's name on it for daycare. Thank you.

What’s the difference in the jersey fabric and cotton fabric in terms of keeping little one cool? I need very breathable, summertime friendly pajamas.

Quality baby pajamas 12 months old baby boy