WHEN it comes to getting a good night's sleep – we all have our preferences.

Some people prefer white noise in the background, others need deathly silence to snooze, and some prefer to sleep totally naked.

But a sleep expert has revealed why you may want to keep your pajamas on during the night – especially if you're guilty of farting.

The experts over at Shut Eye Sleep Tracker revealed how sleeping naked, especially if you have a partner could be pretty gross for everyone under the duvet.

Shut Eye is an app that records sounds you make in your sleep to track your sleep cycle and help you get a good night's sleep.

In a TikTok video, the expert said: "Here's why you should never sleep commando.

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"The average person cracks one off 15 to 25 times a day, and this can happen when you're sleeping.

But the grossest part?

According to scientific studies, it's been proven that every time you 'beep the horn' you spray a tiny amount of fecal material.

So if you're sleeping alone or with a partner, it's best to keep your undies on during the night to have a clean night's sleep.

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The app can record and save files every time you snore, sleep talk and even fart so you can keep track of it.

People who viewed the video were disgusted by the fact, but many wanted to stay ignorant of their farting habits.

One wrote: "I honestly do not need an app to tell me I farted in my sleep."

"Yeah and everything in your bathroom is covered in it so imma sleep comfy and wash my sheets," another added.

A third commented: "Good thing I wash every day and wash my bedding daily."

"If they can’t accept my poop particles then they ain’t for me," a fourth person joked.

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