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Afghans are basically and typically a warming blanket with holes all over it. If we used a multi-layer laced blanket then the children and me could hide under it for an entire night and not suffer cold temps, scarry monsters and not have to worry about any loss in oxygen. When you slide under a sheet or blanket after about 30 minutes you lose your air. With multi-layered lace it would be known as breathable, but your body heat would still keep you warm. To prove this you need only hide under an afghan for half an hour.