BEING one of the most well known sporting icons on the planet is tiring work.
But rather than sleep all night, Cristiano Ronaldo instead takes FIVE naps a day while Dwayne ‘The Rock’ Johnson snoozes for just four hours to keep himself going.
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Last year, it emerged Man Utd superstar Ronaldo, 36, grabs 40 winks five times each day and sleeps in the foetal position.
And here SunSport can reveal the different sleep patterns of several other sporting icons from across the globe and how many hours of ‘Zzz’ time they get, according to Online Mattress Review.
Dwayne ‘The Rock’ Johnson – 4 hours
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The WWE icon turned movie star hits the sack for just four hours-a-night.
At 49, Hawaiian born Johnson clocks off between midnight and is up and about again at 4am.
Presumably to work out at least 25 times a day to maintain his impressive physique.
Muhammad Ali – 6.5 hours
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The greatest boxer of all time put many opponents to sleep in his time and would wind down between 10pm and 4:30am.
As a devout Muslim, much of his time would be split between prayer and training.
And his evening routine would include a walk after dinner, a quick wash, prayers and short stint in front of the TV before he dozed off.
Serena Williams – 7 hours
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You do not need hawk eye to tell when Serena is out for the count but we can neither confirm or deny whether her snoring makes a racket.
The tennis sensation takes a solid seven hour sleep between midnight and 7am each day after a post-dinner routine of socialising and work.
The 39-year-old former world number one is also a mum of a young daughter so her slumbers are no doubt interrupted by the littl’un every now and then.
Cristiano Ronaldo – 7.5 hours
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Ronaldo has perhaps the oddest routine of all the big stars.
Rather than one lump of rest at the end of each day like most of us, Ronnie reportedly prefers to take short naps of an hour-and-a-half each time throughout the day.
After dinner, he relaxes with his friends before a swim at 10pm.
He then takes one of his signature naps until midnight and relaxes until another short burst of sleep from around 3am before waking up for the day.
Ronda Rousey – 8 hours
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MMA and WWE star Rousey’s routine seems pretty standard.
Eight hours between midnight and 8am.
Nice and simple.
Tiger Woods – 8.5 hours
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Woods is generally considered the best golfer of all time.
And to maintain such high levels, the superstar spends eight and a half hours dreaming of sinking putts and splitting fairways.
He snoozes from 10pm to 6:30am – proving the early birdie really does catch the worm.
Tom Brady – 9 hours
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Like Woods, Brady is considered the greatest ever in his field.
The former New England Patriots quarter-back is revered in across the world for his sustained and unrivalled talent.
And the 44-year-old – who is still playing for the Tampa Bay Bucacaneers – makes sure he touches down to sleep for nine hours each day between 8:30pm and 5:30am.
Stephen Curry – 9 hours
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Basketball star Stephen Curry is another record breaker who is set to go down in the NBA history books.
The Golden State Warriors point guard is another who does not take rest lightly – opting to hit the hay for nine hours between 11pm and 8am every day.