Dolly Parton goes to sleep with a full face of makeup in case of an emergency

Dolly Parton has revealed she is always ready for her close-up.

The legendary country music singer has released her tell-all book, Behind the Seams: My Life in Rhinestones, and it contains an interesting passage about her makeup routine.

Some women lament the process of taking off their cosmetics after a long day or night out.

It can take ages if there are a lot of elements to making the face ready for the world and it's sometimes the last thing you want to do.

However, you could always just do what Dolly does.

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She explained that she goes to bed with a full face of makeup just in case of emergencies.

"When I arrived in LA in the '80s, I started sleeping with my makeup on, partly because of the earthquakes," the "9 to 5" singer said in her book.

"I thought, 'I'm not heading out on the streets without makeup in case there are cameras out there! I'm going to be ready to go!'"

You have to love that energy.

But that's not to say she's walking around with days-old makeup that just continues to build up.

The 77-year-old explained that she will usually wash off the makeup at some point in the day before reapplying it.

"It doesn't matter when you clean your face as long as you clean it once a day," she said.

"After I wake up, I do all the little rituals, and then I start over again and go out every day and look good all day long."

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While this might work for Dolly, dermatologists don't recommend it.

Debra Wattenberg, MD, a board-certified dermatologist based in New York City, said it can wreak havoc on your skin if you do it regularly.

“Sleeping in makeup is a bad idea,” she explained to Everyday Health.

“It clogs your pores, inflames your skin, makes it dull, and creates more wrinkles.”

Dermatologist Jamie R. Manning, MD also told the outlet: “There is some truth to the term ‘beauty sleep'.

“During the day, the skin acts as a protective barrier to ward off sun damage and oxidative stress, whereas during the nighttime, the skin is able to go into repair mode, regenerating and rebuilding cells and tissues."

We can't all be blessed with Dolly's face, skin and genes, so it's probably best to stick to that nighttime routine of removing all the products you put on earlier in the day.