Hint: It’s more often than you think.

Miniseries/Getty Images

Changing out your bed linens can be such a chore.

So, how often should youchange out your pillowcase?

High angle view of an unmade bed in the morning.

Photo:Miniseries/Getty Images

Here’s what the experts have to say.

Here’s what to keep an eye out for.

She suggests switching your moisturizer to something more lightweight such asBlue Lotus Balancing Moisturizer.

You may also want to keep in mind those greasy splotches could be from hair products.

Always follow the manufacturers instructions.

If you have a silk or bamboo pillowcase, use a mesh bag to keep it protected from tearing.

Always use warm water to effectively kill bacteria and avoid fabric softeners that can leave residues, says Salazar.

We love using the gentle cycle and letting our pillowcases air-dry to preserve the fine threads.

And lastly, don’t forget to routinelywash your pillows as well!