nap

To have a nap; to sleep for a short period of time, especially during the day.

To be off one's guard.

The regulators were caught napping by the financial collapse.

I took thee napping, unprepared.

A short period of sleep, especially one during the day.

A soft or fuzzy surface, generally on fabric or leather.

I tell thee, Jack Cade the clothier means to dress the commonwealth, and turn it, and set a new nap upon it.

On his long, gaunt body, he carried no spare flesh, no superfluous beard, his chin having a soft, economical nap to it, like the worn nap of his broad-brimmed hat.

The common direction, on some kinds of fabric, of the hairs making up the pile.

If the fabric has a nap, make sure all pieces are cut with the nap going the same direction.

Instead of grinding the pistons straight around the axis, they are ground diagonally with a special-built machine. As a result, the “nap” of the metal is turned in such a way that, when it meets the “nap” of the cylinder wall, both surfaces quickly develop a high finish which removes the danger of scoring a piston.