Ikea employees gathered in their pajamas to celebrate the beginning of a new initiative focused on improving sleep.In doing so, 2,052 employees in Älmhult, Sweden broke a Guinness World Record for the most people wearing two-piece pajamas in a single venue, according to the company. "We’re thrilled about this collective effort, coming together to highlight the importance of sleep," said Fredrika Inger, managing director of IKEA of Sweden, in a p…