If you’ve got a spare $15,000 a night and fancy staying in a suite which is nearly twice as large as the Australian home and 20 times larger than the average cruise ship stateroom, then we’ve found the accommodation for you.

Regent Seven Seas has revealed pictures inside, what the line claims, will be the most luxurious and largest suite at sea.

Onboard its new Seven Seas Splendor, the Regent Suite totals a staggering 412 square metres. It includes an in-suite spa retreat which has a personal sauna, steam room and treatment area with unlimited spa treatments.

The Regent Suite will be perched on the 14^th deck of the ship, above the bridge and overlooking the ship’s bows so those lucky guests will be able get a unobstructed view when she sets sail.

Guests in the Regent Suite also enjoy a dedicated personal butler to manage all the details of the guests’ experience, a personal car with driver and guide in every port, and the exquisite comfort of a custom, hand-crafted US$200,000 Vividus bed from the renowned Hästens brand.

The king-sized continental bed is being built by four master artisans at the Hästens workshop in Köping, Sweden and features a pinewood frame, steel springs, and layers of flax, horsetail hair, and cotton and wool batting. With over 300 hours of labour and an 18-month timeline to complete, the mattress will be the most luxurious bed at sea, allowing guests to sleep in unparalleled comfort each night after exploring the world during the day.

The suite also has a separate sitting area in the master bedroom which features a large sofa and large flat-screen 4K ultra high-definition television. The guest bedroom in the two-bedroom, two-and-a-half bath suite reflects the master suite design with a separate and inviting sitting area, walk-in closet and private balcony. The Regent Suite accommodates up to six guests in total.

Regent Suite guests also have exclusive access to an additional private dining room every evening in The Study located on Deck 11, where they can host a cocktail reception or enjoy fine dining selections from the exquisite steakhouse, Prime 7, or the modern French restaurant, Chartreuse.

Out on the balcony, you’ll find a custom-made Treesse minipool spa which will provide incredible views from the glow of dawn to the setting sun while guests soak and relax while sipping a glass of Veuve Clicquot. The fully-stocked bar bordering the living room and solarium allows for unobstructed ocean views while you recline in comfort, as a personal butler mixes your favourite beverage.

“The Regent Suite is the ultimate example of how Seven Seas Splendor will astonish luxury travelers with an unrivaled experience, and it reflects the superior level of detail you’ll uncover throughout this stunning ship,” said Jason Montague, president and chief executive officer of Regent Seven Seas Cruises.

“In the Regent Suite, whether you’re entertaining friends in your elegant living room, enjoying caviar or lobster in your dining room, relaxing on your hand-crafted Hästens Vividus bed, delighting in unlimited spa services in your personal in-suite treatment area, or exploring a seaside village with your personal car and guide coordinated by your dedicated head butler, the holistic experience represents luxury perfected.”