Simplify the following text for a Grade 6 native English-speaking person.
Original: The Upper Class seat is claimed by the airline to be the biggest fully flat bed of any airlineâ s business class service ( it is approximately 202 cm long and 84 cm wide ) ; however , Air Canada and Singapore Airlines have made similar claims .
Simplified: They do not have a first class service . Virgin says the seats are the biggest lie flat beds on any business class ( it is 202 cm long and 84 cm wide ) , but Air Canada and Singapore Airlines have said this too .