No, the air in the quilt is enough for the dog to breathe. Furthermore, there are gaps when covering the quilt to ensure the circulation of air, which will not suffocate the dog; if the quilt is tightly covered, there will be no air. , a smart dog will come out to breathe on its own when it feels difficult to breathe; generally, dogs will not suffocate in the quilt, unless there is an external force pressing the quilt hard.