Businesses across Britain are getting into thespirit.
A hotel in London has even created a special royal nursery to coincide with the birth of Prince William and Kate's first child in July.
For $4,000 a night, guests at the Grosvenor House Hotel can treat their infant like a little prince or princess with luxuries like an $18,000 four-post bed and a $4,500 bassinet. The nursery cost $40,000 to build.
"We want mums to come in and go, 'Oh, wow!'...I never dreamed my baby could sleep somewhere so beautiful,'" designer Lucinda Croft said.
Overlooking Hyde Park, the hotel has deep connections with the royal family. Croft says Queen Elizabeth II learned how to skate in the hotel's grand ballroom.
CBS News' Lucy McDonald got a special tour of the new nursery -- watch video above to see the royal amenities.