The phrase "make oneself snug" refers to making oneself comfortable or cozy, typically by adjusting one's clothing or surroundings. There are several synonyms for this phrase, including "settle in," "snuggle up," "nestle," "curl up," "hunker down," and "cosy up." Each of these phrases is used to describe the act of getting comfortable in a physical sense, often with the intention of feeling warm and secure. Whether you're snuggling up with a book on a cold winter's night or hunkering down for a cozy nap, these synonyms for making oneself snug can help you describe the sensation of feeling warm, comfortable, and content.