I swaddle my newborn to protect my nipples from her flailing hands. How can I get my breast into her mouth when her little fingers instinctively make it in just before I do?
Sometimes, as soon as she's "trapped" she falls asleep, so I think she likes it, too. I think she's learned to associate it with nursing maybe.
Someone should invent a teeny straitjacket-thing (Obviously that name would have to be changed for marketing purposes) for that purpose, because it really is way too easy for them to wriggle their arms out.
Hopefully soon she'll learn to stop putting her hands up there when she's hungry because I really hate swaddling her, I like to hold her little hands and rub her teeny fingers along my cheeks or lips. Gotta love baby love.
She had her hands up by her mouth for the whole end of my pregnancy, for a while I wondered if she'd be born with her hands up by her face (I saw a picture of a newborn with her hands and head being birthed at the same time- eeks!)