T+Ls ultimate guide to packing smart for your next cruise.

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Some say the best thing about traveling by ship is that you only have to unpack once.

But whats inside your suitcase can make the difference between a smooth sail and a frustrating time at sea.

Luggage besides a docked cruised ship

Most ships offer more than you’ll ever need, but bringing along a few extras can take a trip from good to great.Credit:RELAXFOTO.DE/GETTY IMAGES

We tapped leading experts in cruise travel for their advice on the must-haves for your next departure.

A Sleep Kit

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I also always bring an eye mask, Curry says.

Cruises in polar areas often have a lot more light than you expect!

A man on a bridge in London wearing a backpack

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But I always pack a no-spill Yeti tumbler so I can bring my coffee on early morning excursions.

Not all ships have them.

A woman sleeping with a sleep mask on in a bright room

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Phone in a waterproof case beside a pool

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A red metal coffee tumbler

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