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 / Updated  / Source: TODAY
By Rebekah Lowin

Royals fans have taken the baby waiting game to a whole new level.

Royal baby campout
Royal well wishers wait outside the Lindo Wing.Ben A. Pruchnie / Getty Images

Superfans have set up camp outside of St. Mary's Hospital in London with hopes of witnessing Duchess Kate's in-labor entrance — some waiting, day and night, on the cold ground outside the Lindo Wing.

Royal baby campout
John Loughrey, 60, with his Union flag-designed outfit.Matt Dunham / AP

Decked in their finest patriotic attire, they refuse to leave the premises until the baby is born.

Royal baby camp out
Fans of the royals camp out on April 22.Getty Images

"Two nights we've been here, with hardly any sleep at all — about six hours [over both nights], if that," Maria Scott told People. Her 14-year-old daughter, Amy Thompson, has been waiting alongside her in a tiny tent, and the two of them traveled more than 300 miles to be there.

Lindo Wing at St. Mary's hospital confirmed for birth of second royal child of William and Catherine
Will the baby be a boy or girl?FACUNDO ARRIZABALAGA / EPA

"I camped out to see Prince William get married and now have seen him have a child of his own," she said, citing the last time she waited outside the hospital when Prince George was born nearly two years ago.

When do you think the second royal baby will be born? Enter TODAY's royal baby pool and let us know.

Image: Fans of the Royal family wait outside the Lindo Wing of St Mary's hospital in London
Fans of the Royal family wait outside the Lindo Wing of St Mary's hospital in London, April 20, 2015. Britain's Catherine, Duchess of Cambridge, is due to give birth to her second child at the hospital some time in the next two weeks. Reuters
Lindo Wing at St. Mary's hospital confirmed for birth of second royal child of William and Catherine
epaselect epa04714608 A royal fan holds a figurine of the Duchess of Cambridge outisde the Lindo Wing at St. Mary's Hospital in north London, Britain, 21 April 2015. The second child of Kate, the Duchess of Cambridge, and Prince William is due to be born in the second half of April at the Lindo Wing of St. Mary's Hospital in London. The hospital has seen a steady stream of visits from royal fans over the past week, many of them carrying the British flag, the Union Jack, or wearing clothes decorated with the flag. EPA/FACUNDO ARRIZABALAGAEPA
A fan of the royal family wears a union jack hat decorated with badges outside the Lindo Wing of St Mary's hospital in London
A fan of the royal family wears a union jack hat decorated with badges outside the Lindo Wing of St Mary's hospital in London, April 16, 2015. Britain's Catherine, Duchess of Cambridge, is due to give birth to her second child at the hospital some time in the next two weeks. REUTERS/Peter Nicholls TPX IMAGES OF THE DAYReuters
Royal baby campout
Royal well wishers wait outside the Lindo Wing of St Marys Hospital ahead of the Royal birth on April 22, 2015 in London, England. (Photo by Ben A. Pruchnie/Getty Images)Getty Images
Royal baby campout
Royal fan Terry Hutt, aged 79, with his Union flag designed outfit, flags and signs stands across the street from the Lindo Wing of St. Mary's Hospital in London, Thursday, April 23, 2015. Britain's Kate the Duchess of Cambridge is expected to give birth to her second child with her husband Prince William at the hospital in the coming days or weeks. A small number of dedicated royal fans are waiting or camping outside the hospital awaiting the imminent birth. Matt Dunham / AP