IPA: //ˈsnʌɡ.nəs//
KK: /snʌg.nəs/
The quality or state of being comfortable, warm, and cozy, often in a way that makes you feel safe and secure.
The snugness of the blanket made her feel warm and relaxed on the cold night.
Snugness is formed from "snug" (from Old Norse "snuggr", meaning tight or close-fitting) and the suffix "-ness" (meaning the state or quality of). The word "snugness" refers to the state of being snug, or the quality of being comfortably tight or cozy.
Think of the Old Norse word for tightness, 'snug', and remember that 'snugness' describes the cozy feeling of being comfortably tight.