It has nothing to do with comfort. When you handle your croc, its eyes should be open all the time. That means its confident around you. Since your croc has its eyes closed, that means you are stressing it out and that is NOT good for it. Handle less, or give it more room.
:Sully is about 6 mths now, but still sometimes when I hold her closely & try to make her feel secure, she closes her eyes like she's sleeping. It doesn't take anything to make her open her eyes and get moving but I was just wandering if this is typical behavior or if I'm especially lucky to be able to calm her in this way?