Beckham offers some baby advice to William and Kate

David Beckham congratulated William and Kate, calling them 'a great mum and dad'. Credit: RTV

David Beckham has given some friendly advice to the Duke and Duchess of Cambridge ahead of their new arrival - get some more sleep!

Beckham praised the royal couple's parenting following the news that they are expecting their second child.

The Duke and Duchess of Cambridge with their first child Prince George. Credit: Michael Middleton/PA Wire

Speaking at the launch of his Belstaff collection at New York Fashion Week, the father-of-four said: "Obviously William I've known for quite a few years, and William is such a great person, such a great dad."

"Catherine is exactly the same. She's a great mum and obviously with the commitments that they have to be a great mum and dad is pretty incredible."

Beckham, whose brood Brooklyn, Romeo, Cruz and Harper have each faced the limelight, said he was excited about the news of another royal baby.

But he joked, "They definitely need to get some more sleep before this little one arrives."

David Beckham and Prince William at the 'United for Wildlife' campaign launch. Credit: Anwar Hussein/Anwar Hussein/EMPICS Entertainment

Beckham and his Spice Girl-turned-fashion designer wife Victoria attended the royal wedding and the former footballer has worked closely with William on a number of projects over the years.