General Authority of Civil Aviation spokesperson says survey "not scientific".
As voted for by readers of travel website www.sleepinginairports.net.
The event takes place from the 26-29 January in Dubai.
Airport retailer records sales of $1.8 billion in 2013.
Work will effectively increase the size of the passenger terminal by 50 percent.
Aircraft movements were also on the rise reaching 13,395 movements, representing a 15.4 percent increase.
The new airport is planned to have a capacity of 25 million passengers.
HIA saw an 11.36 percent passenger increase in July.
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