Getting cozy has never been so fashionable.
If you're scrolling through Facebook or going through your holiday cards, chances are you've seen families and couples dress to impress in matching pajamas. In fact, many famous celebrities are taking part in the trend as they celebrate Christmas and the cold winter months.
So what's the cause of this new obsession?
"I'd say the obsession is more on the part of the girl and wanting a cute Instagram photo," Johnny Bananas told E! News after rocking his own PJ joggers with girlfriend Morgan Willett. "I mean how often do you hear a guy saying, 'Hey honey, let's get matching PJs and sit in front of the Christmas tree?' None the less, I still support it."
And he's not alone! From Leslie Odom Jr. and Mario Lopez's families to Jessica Alba and Kylie Jenner's crew, we compiled all of the Hollywood stars getting in the spirit with unique pajamas.
Keep scrolling to see what's in style and where you can find a festive pair for yourself in our gallery below.
"Loved celebrating our first Christmas at our beautiful new home in LA before flying to Paradise," Paris wrote on Instagram while wearing matching Tipsy Elves with her husband.
Who that? Who that? It's I-G-G-Y and her son sporting matching looks.
"This might've been our favorite jammy picture day ever," the couple wrote on Instagram while wearing Hanna Andersson's Scandi Snowflake matching family pajamas. "It was impromptu, and it was fun!!"
"Full house," The Kardashians star wrote on Instagram as her kids and nieces dressed in matching red snowflake-printed pajamas.
"So much fun getting the TN crew together just to celebrate Christmas and see the joy in the kiddos eyes!" The Hills star wrote on Instagram as her family wore matching Target pajamas. "It's so fun to see how excited they get when they see the lights."
"Will your husband wear matching onesies in public with you?" Brittany joked on Instagram while posing with Patrick Mahomes in Coors Light Beerman Holiday onesies.
The model and her son Nash get in the holiday spirit early by wearing Noomie's matching mommy and me Christmas Patches loungewear.
"Best time ever!" the Dancing With the Stars pro wrote on social media while wearing matching pajamagrams with girlfriend Elena Belle. "Merry Christmas to y'all."
"Merry Christmas from this crew to yours! Sending you lots of love and cuddles!" the actress wrote on Instagram. "Wishing you a day filled with love, laughter, and hot cocoa! Thanks @_littlenavy for keeping our family tradition of matching Jammie's and @pmallgifts for our Santa hats!!!!"
"Happy holidays to you all! You have transformed not only mine, but my family's life in just one short year," the Real Housewives of Beverly Hills star wrote on Instagram. "We are eternally grateful for your love, support, and constant well wishes."
"Merry Christmas," the Today show co-anchor wrote on Instagram.
"Merry Christmas 2021!!!" the Real Housewives of Orange County star wrote. "#christmas #matchingpjs #familytime #family"
"Merry Christmas from half of my family to yours!" the Basketball Wives star shared online. "Thank you @childrensplace for our Christmas Pajamas."
"Merry Christmas from the Darby family to all of you!" the Real Housewives of Potomac star wrote alongside a few photos of her with her hubby and their two kids, Dean and Dylan. "We love you and are so thankful for positivity you give our family. Dylan is standing, almost 4 walking humans in this house. Time moves so fast #merrychristmas #DarbyFamily."
The Sister, Sister star wrote, "Only one more sleep until Santa comes, you guys! Can't wait to see the smiles on my babies' faces."
"If you don't have matching Christmas onesies wyd?" the actress cheekily shared.
"It's been a rough year. These three make it worth it," the musician gushed on Instagram. "Merry Christmas from my family to you."
"East Family Christmas… that's a WRAP," the Olympic gymnast wrote. "(also… Jetter and Drew are almost the same size)"
"Paris couldn't wait to take it off. Kobe was cozy, Chunk got a little crazy," Demi-Leigh Tebow wrote on Instagram alongside her dogs. "Merry nearly Christmas from the Tebows!"
"First Holiday season as an official family," the Selling Sunset star wrote on Instagram. "We've been doing Christmas photos together since Tarek and I started dating, it's a little tradition I brought with me but doing them this year as the El Moussa family felt extra special. And thank you hubby for letting me dress you in whatever I want."
"Back at it again!" the Bachelor in Paradise star wrote on Instagram. "Matching family pajamas every year is something the kiddos look forward to, and @leveretclothing has all the options for the family to match!"
"First Christmas selfie as a fam of 6," Lauren Akins wrote as the crew sported pajamas from Hanna Andersson. "#itsthemostwonderfultimeoftheyear."
"Do You Even Vacay In Matching Jammies, Bro??" the blogger and actress wrote on Instagram while her family wore Little Navy pajamas.
The Las Vegas star and her three children kick off the holiday season with Carter's matching holiday pajamas.
"Hope y'all had the coziest of Christmas," the Twilight star wore while wearing matching Tipsy Elves with his girlfriend Tay Dome.
"Merry Christmas Eve!" Caroline Bryan shared on Instagram while posing with her family. "Cozied up in our @jockey PJs!"
"His and hers, Grinch edition," the actress wrote while posing with Charlie McDowell. "Happy Christmas everybody!..."
"Merry Christmas from ours to yours. Happy birthday, Jesus," the Today show co-host wrote. "Don't judge but I'm still wearing the pjs almost 24 hours later."
"Mele Kalikimaka from our Ohana to yours!" the Glee star wrote online.
"Love this family full of chaos more than anything in the world," a shirtless Cole DeBoer wrote. "Can't wait for our new addition to join the madness."