Poll: Women wear pajamas for 17 days before washing

You may be sleeping in a clean bed every night. But how clean are your pajamas?

A new study put that question to task.

According to a new poll, the average man wears his pajamas for almost two weeks before they hit the wash. Women wear their pajamas even longer – for 17 days.

The top excuse for the washing machine challenged: they only wear their pajamas for a few hours - so no need to wash.

Dermatologist Dr. Doris Day says, while the chances of catching something from your pajamas is slim, it can still be unhealthy.

"If you have a bacterial infection, that bacteria can be transmitted through your pajamas. It's very unlikely you can get an infection from your pajamas, but if your pajamas are very tight, if you a lot of broken skin, and if you have bacteria growing, that can theoretically be a problem," said Day.

The most common type of pajamas women wear are the traditional two-piece.

So if you're wearing the same pajamas every single night to bed, how often should you wash them?

Experts say at least once a week - and definitely, definitely when they start to smell.