Japenese police counted over 7,000 cases of the phenomenon known as rojo-ne - literally sleeping in the road - last year, Report says, citing foreign press.
And lockdown doesn't appear to have put off revelers, with 2,702 cases recorded between January and June this year.
They have called for an end to the practice - backed by the local baseball team Ryukyu Golden Kings.
Although usually harmless, the habit has previously resulted in deaths. Last year 16 people were hit by cars as they lay in the road, with three losing their lives.
Tatsuo Oshiro, head of the area's police traffic division, has led calls for the practice to be halted.
Southern Okinawa's warm climate - compared to the chilly conditions in Tokyo - are believed to be to blame as they make it comfortable for many to sleep outside.
But the 'laid-back' culture on the island and local drink Awamori, famous for its high alcohol content, has also been named as possible culprits.
Japanese police ask drinkers to stop sleeping in street
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