A foam cushion is great for sitting, sleeping, or cuddling up to. Some foam cushions are ideal for cushioning the seat of a hard chair, to make long periods of sitting more comfortable. This is ideal for those with sedentary jobs.
Foam cushions come in memory foam as well as standard upholstery foam. Memory foam 'remembers' its shape and provides shaped support for your body. Besides seats, foam cushions can also provide back support or serve as a pillow.