Carpet Beetle and Moth larvae will happily munch away on your fabrics and soft furnishings.  The adults do not cause damage but they will leave their eggs secreted around your home.

After a short while, depending on the temperature, the eggs hatch and the larvae emerge to cause severe damage.

As these insect pupae are very small and like to live in dark secret places, unless you know what to look for the first thing you may notice, other than holes in your carpet or clothes, will be adult moths fluttering around the inside of your home or small beetles on your window sills.  Larvae of the carpet beetle are commonly called 'Wooly Bears'.