cozy

a padded cloth covering to keep a teapot warm

enjoying or affording comforting warmth and shelter especially in a small space; "a cozy nook near the fire"; "snug in bed"; "a snug little apartment"

having or fostering a warm or friendly and informal atmosphere; "had a cozy chat"; "a relaxed informal manner"; "an intimate cocktail lounge"; "the small room was cozy and intimate"

suggesting connivance; "a cozy arrangement with the police"