A cooling blanket is part of a bedding set including a pillowcase, blanket, and duvet. A blanket is lighter than a comforter and intended to keep you warm on a summer night. A cooling blanket can keep you cool on nights when the temperature is high and you are finding it difficult to sleep. If the temperature reduces to make the internal temperature cold, then a comforter can make you comfortable faster than a cooling blanket. A cooling comforter is more suitable for long journeys since it is able to keep you warm and dry in most weather conditions.