National Wear Your Pajamas to Work Day is celebrated annually on the first Friday in April. This fun and lighthearted day encourages people to wear their favorite pajamas to work, promoting comfort and relaxation in the workplace. It is often embraced by companies looking to boost morale and foster a more casual atmosphere. The day is not an official holiday, but many organizations participate by allowing employees to dress down. Pajamas can range from traditional sleepwear to more creative and themed outfits, making it a playful way to break the routine of formal work attire.