A long-haul flight can be especially intimidating. Should you prioritise sleeping or eating, or both? What if you can't sleep? Kris Major is a British flight attendant with 25 years' experience. He's worked short-haul hops and spent 14-hour stretches in the sky.

He's endured journeys with an unenviable number of layovers, and he's become an expert in refuelling via power naps at 30,000 feet. As many of us prepare for long-haul trips, Major tells CNN Travel his tips and tricks on surviving multiple hours in the sky. READ MORE: Fitness staple that could catch you out at the airport Many of us find it difficult to sleep on airplanes, whether due to unfamiliar noises or, for the cheaper seats, limited leg room and upright positions.

Struggling to sleep on a long flight, knowing you're going to pay for the lost hours when you land, can be an unpleasant cycle of worry. Should you persevere and keep trying, or give up and watch a movie? Major says there's no point trying to force sleep, particularly if your body clock thinks it's the middle of the day and you're simply not tired. But he cautions that it's important to bear in mind what you're doing at the other end.

If you're going to be driving, for example, or going straight to a meeting, you should try and rest as much as you can. READ MORE: Culinary delight that's the perfect way to start or end your next Fijian holiday Airlines usually provide pillows for long-haul travellers, no matter the cabin, but Major says bringing your o.