Q-Zone earplugs

Ear plugs topped the list of suggestions. Q-Zone ear plugs were recommended by several readers - they come with two sets of filters that you can insert in each plug. One set reduces high-frequency noise and the other cuts down low-frequency noise such as snoring.

A Consumer staff member found the Q-Zones ($33.99) more comfortable and effective than the mould-to-your-ear plugs he also tried ($10.95 for a set of three, from a pharmacy) ... so much so that he slept part of the flight to Sydney. The Q-Zones were a bit mysterious to use at first, and can be fiddly. But they'd be worthwhile on longer flights - and useful if your hotel room turns out to be noisy.

You can buy noise-cancelling headphones to suppress background noise. They're expensive ($100 or more) and they take up room in your luggage, but if you want to listen to the in-flight entertainment they do improve your listening experience.

Mould-to-your-ear plugs

We tested them and found that, while they didn't get rid of background noise completely, they made a significant difference. See our report on Noise cancelling headphones for the full story.

It's not much fun getting sick on a plane. One reader recommended taking a small emergency kit in your carry-on luggage. Anti-diarrhoea tablets, pain relievers, nasal spray, and cough lozenges can all help.

Compression stockings minimise the risk of deep vein thrombosis (DVT). DVT can occur during long periods of immobility - on long bus trips as well as flights. Risk factors include varicose veins, cancer, recent surgery, pregnancy, hormone therapy, age (over 40), obesity, or a family history of DVT.

If you're exposed to any of these risk factors, get medical advice. Your GP or a travel doctor can advise on wearing compression stockings or taking other precautions.

Sleeping mask

Even if you're not at risk, it's recommended that you exercise your legs frequently - and also that you drink plenty of water and avoid alcohol (which makes you sleep).

An airplane cabin is a very dry environment - cabin air typically has a humidity of just 10 to 20 percent, compared with the 40 to 70 percent level at which we feel most comfortable. A facial mist, moisturising cream and chapstick could make your trip more comfortable.

A sleeping mask was also highly recommended for long flights.

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