cozy

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 atmosphere; especially through smallness and informality

• “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”

a padded cloth covering to keep a teapot warm