Merry Christmas!

One of our favorite things about having time off for the holidays is that we can lounge around at home in our robe and slippers with nowhere to go, and no one forces us to wear real clothes.

In fact, sometimes most of the time, we wish it was socially acceptable to wear pajamas out in public. And it seems that many celebrities feel the same way.

Whether sporting playful PJs at a theme party or donning sleek sleepwear for a red carpet event, stars such as Rihanna and Jessica Alba have made a cozy fashion statement out of a bedtime staple.

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  • Andy Cohen

  • Rihanna

  • Jessica Alba

    Actress Jessica Alba attends a screening of 'My Bloody Valentine 3D' at Mann's Chinese 6 on January 8, 2009 in Hollywood, California. (Getty)

  • Rachel Bilson


  • Avril Lavigne

    Avril Lavigne during MTV's New Year's Pajama Party 2003 - Show at MTV Studios Times Square in New York City. (Getty)

  • Christopher Walken


  • Rosie O'Donnell

    Talk show host Rosie O'Donnell, left, and Toss Ousham attend the CFDA award ceremony, 1994. (Getty)

  • Abigail Breslin

    Actress Abigail Breslin arrives at 'The Princess Diaries 2: Royal Enagement' DVD Pajama Party on December 8, 2004 at the Beverly Hilton in Beverly Hills, California. (Getty)

  • Cynthia Nixon

    Actress Cynthia Nixon poses for a photograph at a performance of her musical "Free to Be...You and Me" February 25, 2002. (Getty)

  • Carrie Fisher

    Carrie Fisher hosts Pajama Program's Obama Pajama Party Inauguration Charity Ball to Benefit Children in Need at Ronald Reagan Building on January 18, 2009 in Washington , D.C. (Getty)

  • Danica McKellar

    The Children's Place Pajama Party to Benefit the AZ, CA, NV Chapter of Starlight Starbright Children's Foundation. (Getty)

  • Johnny Depp

    Actor Johnny Depp is seen during the filming of 'The Tourist' at the Mercato del Pesce on March 15, 2010 in Venice, Italy. (Getty)

  • Linda Cardellini

    Linda Cardellini during Barkley Hope Pajama Party at Barkley Hope Store in Los Angeles. (Getty)

  • Patti LaBelle

    Patti LaBelle during The Pajama Program 2006 Awards Benefit Luncheon at The Pierre Hotel - The Cotillion Room in New York City. (Getty)

  • Pixie Lott

    Pixie Lott performs at Hammersmith Apollo on December 7, 2010 in London, England. (Getty)

  • Matt Damon

    Actor Matt Damon arrives in his pajamas at the 48th Annual ICG Publicist Awards at The Beverly Hilton hotel on February 25, 2011 in Beverly Hills, California. (Getty)

  • Rosie Perez

    Rosie Perez during V-Day Harlem 2002: V-Day's 2002 Benefit Show In NYC Presented By Essence at The Apollo Theatre in New York City. (Getty)

  • Rachel Roy

    Designer Rachel Roy attends the 'One Day' premiere at the AMC Loews Lincoln Square 13 theater on August 8, 2011 in New York City. (Getty)

  • Snooki


  • Sienna Miller


  • Katy Perry


  • Lily Allen


  • Helena Bonham Carter


  • Katherine Heigl


  • Robert Downey Jr.


  • Colin Farrell


  • Beyonce


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