King's staff jokes Trump brought own sheets to avoid tan cream stains on royal linen

President Donald Trump flew his own bed linen from the U.S. for his stay in a royal English castle — and courtiers in the ultra-luxurious accommodation think they know why.

Courtiers at Windsor Castle — a home to Great Britain's King Charles — are reportedly joking that Trump wants to avoid leaving stains on the royal bedding from tanning chemicals.

The courtier's theory was shared with the Daily Mail in a report Tuesday as Trump started his first full day of the United Kingdom visit.

Trump and First Lady Melania are also set to occupy separate suites at Windsor Castle, according to palace insiders.

"The King is apparently very fussy about his bed linen – the finest Egyptian cotton, according to a source – but it seems this doesn't cut it for Mr Trump," reported the Daily Mail's "Ephraim Hardcastle" column.

"The president's aides, inspecting his suite in Windsor Castle before his arrival, provided housekeepers with bedding. A courtier muses that it may just be the President not wanting to stain the royal pillows with whatever tanning chemicals he uses to keep his orange hue.

"Below-stairs wags, noting that Melania has a separate suite, joke that if she'd asked for a water bed she could effortlessly drift apart from Donald."

The sleeping arrangements align with royal precedent. The late Queen Elizabeth II and Prince Philip famously maintained separate sleeping quarters.

Trump's team went to extraordinary lengths to prepare for their royal accommodation, with the "Ephraim" column noting that his staff meticulously examined the Windsor suite — and decided that the linen be replaced with that brought from the U.S.

Meanwhile, protests dogged the first fill day of the visit, with "Everyone Hates Elon" projecting a photo of Trump and Jeffrey Epstein onto Windsor Castle before the president's arrival.