always followed by an adverb or preposition
1 [no object] : to lie or sit close together in a comfortable position
The puppy snuggled up against the sleeping boy.
The boy snuggled close to his mother.
We snuggled (together) under a blanket.
2 [+ object] : to place (something) close to or against someone or something
The dog snuggled its nose between the pillows.
The baby snuggled his head against my chest.