A loft is a room on the highest floor of a house or apartment building. Lofts usually have a view of the floor below.
Something is soft if it can be squashed out of shape very easily, and you cannot cut or hurt yourself on it. Soft things are very comfortable to lie on. Pillows are soft, and most animal's fur is soft. The opposite of soft is hard. The cat in the picture is asleep on a soft lambskin rug.