Would YOU sleep in your make-up? Four women commit the cardinal skin sin - and are shocked by the results. [View Photos]

She's famous for her perfectly done cosmetics but now Kim Kardashian has confessed to committing the cardinal skin sin of sleeping in her make-up. Kim, 35, admitted that celebrity cosmetic artist Charlotte Tilbury had given her the idea, saying: 'She's inspired me when I am really lazy and I can't do my make-up the next day, so I'll sleep in my make-up. '

The reality star never looks anything but completely polished so perhaps she is on to something? With this in mind FEMAIL asked four women to try her trick themselves to see what it's like to wake up with a full face of slap. So were they ready to face the day - or left begging for a facial wipe?

The night before the morning after... Shelley Marsden returned home from a night out at a gig and went to bed with her evening red lipstick and eyeliner, bypassing her usual make-up removal routine

The next morning (left) Shelley's skin felt uncomfortably dry and her eyes were puffy; but after tidying her face up and using some eye make-up remover on her lids she looked presentable enough to go to work (right). A recent survey found that millions of women, almost two thirds of 18 to 34-year-olds, are committing the 'ultimate skin sin' of sleeping with their make-up on.

As they get older they become more concerned about skincare, according to research for The Fine Bedding Company. More than one in 10 women aged 18 to 24 admitted they could not be bothered to remove it every night, while for those aged 25 to 34 the figure was 7.8 per cent. The survey of 2,000 UK women also found Birmingham had the highest proportion of regular offenders - three out of five women of any age.

Meanwhile Liverpool lasses weren't afraid of a face wipe, with a massive 77 per cent responding to the question with a resounding ‘never’. Here our four volunteers step away from the cleanser to see what happens... Writer Shelley Marsden, 37, lives in east London with her boyfriend Pierpaolo Spadoni, 41, and their children Dylan, three, and Jesse, one

So our Kim has broken the golden rule and gone to bed with her make-up on, has she?

When I do the same one night, I wake up feeling totally gross.The sensation of awakening with a complete layer of product on your face is akin to doing an intense session down the gym, working up a full-body layer of sweat, letting it dry on your skin and then trotting off to bed.

It’s the walk of shame for the face. There's a layer of crap on your skin the next day that you know should NOT be there. You’re praying nobody notices and you can't wait to get home so you can scrape it all off.

Shelley was shocked by her appearance the next morning after sleeping in her party make-up, noting that her skin felt uncomfortably dry and all her the lines in her skin were accentuated. I know people collapse in bed fully made-up l, I did the same during my uni days. Now, it feels like a throwback to a much more adventurous life. Except my skin doesn’t bounce back half as well as it used to.

Why on earth would Kim do this? Why would she need to?!

As for how I look the morning after the night before, well - try Miss Havisham, after a hard night's clubbing and a greasy kebab on the way home (I did neither - I went to a low-key gig with my boyfriend and was home and under the duvet - still made up to the nines - by midnight).

Dragging my slightly hungover self to a mirror, my skin looks... knackered. The make-up from last night has dried my skin up so much it feels like the Sahara.

I suddenly imagine what I’ll truly look like in 20 years, and it’s not a thought I want to be confronted by at 7am

No spots or spots-to-be, I note with pleasure,

but that’s the only positive brush-stroke on a canvas of relative devastation.

Lipstick has seeped alarmingly into the small cracks around my mouth and my eyeliner has headed south, both incredibly effective ways of accentuating my thirtysomething wrinkles.I suddenly imagine what I’ll truly look like in 20 years, and it’s not a thought I want to be confronted by at 7am on a weekday. My eyes are seriously swollen, more so than normal. I presume it’s the irritation of the eye make-up.

Becoming presentable again before I head out the door for work (once I've fought the urge to just CLEAN my face properly which I admit, I haven’t the time or energy for now, that’s why I cleanse, tone, blah at night) - isn't half as arduous as I'd thought.

I do a swift make-up remover job, reapply the fierce red I had on last night (there’s no way pastel colours are working on today's face, honey), wipe off the sad, blobby bits of mascara and eyeliner that's gone AWOL, re-apply both and... to the untrained eye, I look almost like I do most mornings - if a little more haggard.

All respect to Kim K. She has all the posh ‘miracle’ creams and the celeb make-up artist friends on hand the next day. I, however, will return to my humble little routine of removing the slap before bed. I’d rather let my poor skin breathe, lather on some 'youth defining' serum the night before and labour in the vain hope that by morning I'll wake up looking as fresh as Gigi Hadid. Ha!

Alice Langley, is a writer from Essex. She lives with husband Rob, 30, and children Lottie, 7, and Orlaith, 4

Kimmy K has recently admitted she sometimes sleeps with her make-up on to save time. A bold statement for someone so into her looks, especially as she was praising her make-up artist at the time. Surely with an army of stylists and beauticians on hand 24 hours a day she doesn’t need to take such drastic measures?

Alice Langley, pictured with her daughter Lottie, seven, was delighted to find an excuse to up the glamour as she attended coffee mornings and meetings

After a dinner with friends, topping up the make-up and heading out for drinks with friends, Alice jumped into bed relieved that she could go straight to sleep without having to take her cosmetics off first I’ve often wondered at the school gates how so many mothers manage to come out each morning looking like they’ve just left the Mac counter when it takes all I have to feed and clothe my two before whizzing up a quick smoothie for me to drink on the run.

I make sure I’m presentable for sure, I’ve not quite reached the point of doing the school run in my PJs just yet, but there is no need in my self-employed role for 6in heels and 4in make-up every day.

Maybe I should make more of an effort. I’m sure there are women out there who judge me for not caring enough about my appearance, but then if I was someone who never let their husband see them make-up free I’d be judged by those who were less into their looks. Such is the joy of being a woman. With Mrs Kardashian-West’s words ringing in my mind I thought I’d give her time saving tips a go this week to see just how well it works. Wednesday I had meetings in London and Thursday I had a coffee morning at my daughter’s school, could one lot of make-up work for both days?

Turning up to school Wednesday morning I had a few compliments on my new, smarter, look. So far, so good. After a busy day in London I came home for a family dinner before topping up the make-up and heading out for a few drinks with friends to celebrate a birthday. By the time I returned gone 11pm I was glad to be able to fall straight into bed without having to worry about taking my make-up off.

The next morning, Alice corrected her panda eyes and added some bronzer and was delighted she could head straight out - until mid-morning when her skin was dry and her eyes ached from being covered in mascara

Come morning I had a small case of ‘panda eyes’ to correct, but after that and a quick sweep of bronzer I was good to go. I was starting to think that maybe Kim was onto something, but by the time I got back from coffee my face was so dry, I couldn’t wait to get in the shower and wash all my make-up off.

My eyes physically ached from being covered in mascara for so long. I guess this is where the professionals step in for Kim and get out those ‘magic creams’ that she talked about.

Sleeping in my make-up was a time saver for sure, but I’m not sure my skin could take this plan full time. I think I’ll stick to my part-time make-up wearer status for now

Suzanne Baum, 41, lives in north London with her husband Lewis Cohen, 41, a lawyer, and their three children Zack, 14, Leo, 13, and Jake, six

Whether it's advice my mother passed down to me to always cleanse before bed or the fact I am a big fan of order and routine, but the thought of sleeping in my make-up was an awful one.

I honestly don't think I've ever done it - even in my years at university when friends slept in their make-up and contact lenses - I wasn’t tempted. I’ve always been prone to acne so have taken my daily skincare routine seriously for as long as I can remember.

Suzanne Baum applied her favourite Charlotte Tilbury products before heading out to dinner

So the challenge of keeping my slick on overnight, like Kim Kardashian is known to have done, did not come naturally to me. Fortunately my husband loves me for who I am and doesn’t give a damn if I’m made up or not so I have never felt the need to wear any make-up to bed to feel 'attractive'. It is the issue of feeling un-clean that bothered me.

Having applied a full face of make-up on the day of the experiment, I continued to powder my nose throughout the day which was spent working in a busy newsroom. Having met my husband for after-work dinner, I didn’t go to bed until late but my make-up hadn’t really budged all day. Like Kim, I wear Charlotte Tilbury products that are extremely durable, so even though I was tempted to reach for the make-up remover, I resisted.

Suzanne was still wearing her lipstick and eyeliner when she got into bed that night but felt comfortable with the idea that she wouldn't be going to sleep with clean skin

The next morning Suzanne says her face felt fine but she needed to tidy up her 'panda eyes' (left); heading off on the school run she was thankful that it was raining and she didn't need to socialise as she looked 'haggard and hungover. Although I didn’t feel very clean not washing the following day, my skin hadn’t dried up overnight and my eyelashes hadn’t fallen out, although there were clumps of mascara on my pillow.

However, waking up with panda bear eyes and smudged lipstick, I looked like I’d been dragged through a bush backwards and felt rather disgusting. The school run was slightly embarrassing as I looked haggard and hungover. Fortunately it was raining so there was no need to socialise with other parents and I had the rain as an excuse should anyone dare ask me what the hell was wrong with my face! I don’t have the luxury of expensive skincare to help replenish my skin like Kim does so just stuck to my usual skincare routine.

But the next time I have a Charlotte Tilbury makeover I've got no desire to carry the look on into the next day. Nilufer Atik, 39, lives in south west London with her partner Matt

Nilufer Atik, 39, from south west London was taught by her mother to ‘cleanse, tone and moisturise,’ each night before bed from the age of 16. While Kim Kardashian may have been criticised for her outlandish fashion sense, nobody could deny that from the neck up, she always looks immaculate.

But as every woman knows, having flawless skin beneath the make-up is vital. Even my mother knew it. As soon as started wearing eyeliner and lipstick at the tender age of 16 she warned me to ‘cleanse, tone and moisturise,’ each night before bed. ‘You’ll be thankful for it when you still have good skin at my age,’ she insisted.

So I was shocked when to discover that not only does Kim not follow a strict pre-slumber skincare routine, she sometimes doesn’t even wash her make up off at all! So it was with some trepidation that I decided to give Kim’s regime a try. I weighed up all the benefits of sleeping in my make-up – an extra 20 minutes in bed, not having to worry about looking pale and uninteresting first thing when I wake up next to my partner. And I never leave the house without make up anyway, not even to pop to the shops. So perhaps this could be a good thing? I put the 24-hour make-up system to the test after a night out with the girls.

I decorated my face with foundation, powder, blusher, kohl along my upper and lower eyelids and sparkly eyeshadow. It was the perfect glitzy night-time look.

A few cocktails later, I was on my way home with my look unspoiled. Normally, I’d remove my make up as soon as I walked through the door, slip on my pyjamas, and cuddle up to my other half in bed before falling asleep.

Nilufer created the perfect look for a glitzy night out however back home instead of removing her make-up she just brushed her teeth and flopped into bed

Nilufer could barely open her eyes and said they felt dry and crusty. Her eyeliner and supposedly waterproof mascara were both smudged. 'I looked like a deranged panda,' she said. And I’d always moisturise. I have rather dry and sensitive skin, so if I don’t follow this regime, I run the risk of waking up with an angry red rash on my face.

This time however, like Kim, I just brushed my teeth and flopped into bed. It actually felt a bit risque.

But come morning I instantly regretted my decision. Not only was my new silk pillow now covered in black marks, I could barely open my eyes they felt so dry and crusty. ‘Yuk!’ I thought as I peered in the mirror with one eye open.

My eyeliner and supposedly waterproof mascara were both smudged. I looked like a deranged panda. And instead of feeling glamorous and sexy the minute Matt laid eyes on me, I just felt silly.

On my Tube journey to work a woman tapped me on the shoulder.

‘You have a bit of a mark, just there,’ she pointed at my cheek. It was the leftover remnants of my thick wear foundation. I rubbed at it with a tissue, hoping that by the time I got into the office, it would have blended in somehow. But I ended up looking like I had a bad tan.

‘Someone’s had a heavy night!’ my colleague joked as I sat down at my desk. And that’s exactly how.

I looked – like I’d stayed up all night drinking. I didn’t feel confident or beautiful. I felt dirty. By lunchtime I could take no more. Rushing into the toilets, I scrubbed my face clean at the sink, before massaging in the soothing cream I’d brought with me. For the first time in my life I spend the rest of the day without any make up on. My pigmentation marks showed and my eyes looked as small as peas after my vigorous washing. But I didn’t care. It was much more preferable to looking like badly dressed drag queen. I honestly don’t know how Kim does it.

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