First class passengers are stealing these items from planes. But... why?

We’re just going to put it out there – if you’re flying first class, chances are you have enough money to buy your own pillows and blankets. Right?

Well, the pillows and blankets provided by some airlines must be really good, because they’re being stolen off the plane. Yes, stolen.

It turns out some posh passengers also have sticky fingers, and now the airlines are cracking down.

United Airlines, American Airlines and British Airways have all seen an increase in their pillows and blankets going AWOL after upgrading to luxury brands Saks Fifth Avenue, Casper and White Co, respectively.

Sleep so good it’s snooze-worthy! We’re teaming up with @Casper to get you your best flight’s sleep. Check it out at the link in our bio. . . . . . #AmericanAirlines #AmericanAir #AALDay #Casper #snooze #sleeptime #sleeping #goodnight #goodmorning #avgeek #Aviation

A post shared by American Airlines (@americanair) on Sep 28, 2017 at 11:52am PDT

“It is a huge problem right now,” American Airlines director of premium services and customer experience strategy Nick Richards told Skift.

“There’s the novelty of a new product, and everybody wants to take them with them. Things just tend to walk away.”

Things have gotten so bad that United Airlines has put out a memo to their flight attendants, asking them to be super vigilant when it comes to watching what passengers are taking off the plane.

“Even if only a small number of these items are taken off each flight, that can quickly add up to millions of dollars across our network over the course of a year,” United wrote in a memo, as reported by blog Live and Let’s Fly.

“To help ensure we are able to continue offering these high-quality products, it’s important to remind customers that these items remain on board the aircraft after every flight.”

LISTEN: We Need To Talk About Plane Etiquette. Post continues below.

To try and combat thieves, United is now selling their Saks duvet online for $79.

British Airways is having a similar problem, with people helping themselves to their White Co bedding.

“People go, ‘Oh my god, this White Company bedding is lovely’ and they take it off the plane with them, which they’re not really meant to do,” the company’s commercial director Harry Zalk told Skift, as reported by News.com.au.

“These are not cheap items.”

This is why we can’t have nice things.