KGNU's Claudia Cragg speaks here with Ryan Carson about the 70 people who work at Treehouse, an online education company that teaches people about technology. They work only four days a week at the same full salary as other tech workers. Yet the company’s revenue has grown 120 percent, it generates more than $10 million a year in sales, and it responds to more than 70,000 customers, according to .

Carson has been working four-day weeks since 2006, when he founded his first company with his wife, he told ThinkProgress. He quit his job to start it, only to find that they both put in seven days a week. “I remember distinctly my wife and I were on the couch one evening,” he recalled, “and she said something like, ‘What are we doing? I thought that starting a company means you have more time and more control, but it seems like we have less time and less control and we’re more stressed out.’” They decided to cut back by not working Fridays, and after they hired their first employee, “we decided to officially enact [a four-day week] and we never looked back.”

Carson has since started three other companies at which he’s instituted this rule, Treehouse being the latest. While it’s hard to quantify, he believes his company benefits from better output and morale. “The quality of the work, I believe, is higher,” he said. “Thirty-two hours of higher quality work is better than 40 hours of lower quality work.” The impact on his employees’ outlook is also “massive,” he said. “I find I just can’t wait to get back to work” after the weekend, and he suspects the same is true for others. On Mondays, “everyone’s invigorated and excited.” He recounted a time when a developer told him that his hope was to work at the company for 20 years. In the Quartz article, he noted that a team member gets recruitment emails from Facebook, but that his response is always, “Do you work a four-day week yet?”