Cristiano Ronaldo has signed an endorsement deal with sleep solutions specialist SleepScore Labs, reports SportBusiness.

The news comes on the back of SleepScore Labs' launch of a new technological advancement and mobile app earlier this week.

"Sleep is crucial for everyone's well-being, but even more so for competitive athletes like Cristiano," Colin Lawlor, chief executive of SleepScore Labs, said.

"We can't think of anyone more qualified to represent the SleepScore brand and highlight the importance of sleep for better overall health.

"We've worked hard to make the first-ever, scientifically validated sleep improvement platform available to everyone for free, and we're excited to have Cristiano be a part of that so even more people can recognise the health benefits of better sleep."