The Ember EBI Quilt from Sea to Summit is an ultra light and incredibly versatile sleep system that has many uses. Its balance of size and weight make it an excellent choice for travel, cycle touring, ultra light backpacking and more. The Ember Quilt can be used in several configurations. You can simply sleep under it like a traditional blanket or if the weather is cold you can tighten the foot draw cord to create a mummy shaped footbox. Press the studs down the side of the quilt to close the lower half of the quilt to trap more warmth.