It's a fashion must-have for any woman looking to indulge her inner couch potato.

A pair of pants designed to look like jeans - but feel like pajamas - is now on sale.

The aptly named PajamaJeans are made of a mixture of cotton and spandex with a gray jersey lining to provide a snug and relaxed fix, complete with pockets and rivets to give the illusion of trendy denim.

The creators behind this new clothing concept are apparently hoping to capitalize on the success of jeggings - the garment that's part jeans, part leggings.

So the Daily News hit the streets with a pair to gauge people's reactions to this new clothing hybrid. And some fashion forward folks were delighted.

"Sometimes when you're sitting around with friends, you want to be relaxed," said Sherrie Graddic, 45, who lives near the Flatiron District and works in marketing. "You don't want to just go straight to bed so you want something that you can still put on with a T-shirt ... and laugh and talk, drink some wine or watch a movie."

"So pajama jeans?" she concluded. "I think it's a great idea - I don't know why I didn't think of it."

While some of the passers-by took issue with the deep indigo color of the PajamaJeans or the bright yellow stitching, most women - and even a couple of men - could see the appeal and said they'd find a use for them.

"Yes, I would wear them in the airplane when you're flying for like 10 hours," said student Steffi Regoutz, 22, from Vienna, Austria. "They may be okay in the office, but only if you could hide them under the table."

Regoutz's boyfriend, Thomas Duran, 26, said he'd take away a slightly different message if his girlfriend put them on.

"They're like jogging trousers," he said. I would think, 'She's already got her pajamas on, she wants to go home with me.'"

The PajamaJeans are available online and by phone for $39.95.

They come in five sizes but in only one style - dark blue color with yellow stitching and little brass rivets around the pockets.

Sandra Markus, a professor at the Fashion Institute of Technology in the design department, thinks PajamaJeans indicate a lifestyle shift.

"These days, pajamas are just casual wear, with the whole yoga influence," she said. "And jeans ... they are ubiquitous. They are totally accepted, so why not as pajamas?"

With Katie Nelson