The vaude serniga 800 down sleeping bag is a fantastic piece of kit for extreme expeditions in cold weather to keep you truly warm for your essential rest the serniga 800 is filled with 800g of 9010 white goose down the classic mummy shape assists the insulating properties of the sleeping bag by reducing the internal air volume while cutting down pack size weight and bulk a highly insulating close fitting hood is a great feature of the serniga 800 keeping vital heat from escaping this vulnerabl