Paul Sammut has created an alarm clock which he claims will wake the laziest of people in the morning.

His clocks require a unique pin code to switch them off, which changes daily. Set by default to the date, it can also be a random number generated on the clock screen.

The amateur inventor based in Hoboken, New Jersey, who worked on the clocks in his spare time, received investment money from the web forum Kickstarter.

He now has 400 orders for his Ramos clock and is hoping to expand his hobby into a business.