It is exhausting to be one of the most famous sporting icons on the globe.
Cristiano Ronaldo, however, prefers to sleep at night.FIVEDwayne "The Rock" Johnson takes four hours of sleep per day, while Johnson takes naps once a day.
It was revealed that Ronaldo, 36 year old, is Man Utd's superstar and sleeps in the foetus position. He gets 40 winks every day and grabs 50 times a day.
SunSport, based on Online Mattress Review, can provide information about the sleep habits of other sports stars around the world and the hours they get.
Dwayne "The Rock" Johnson - 4 Hours
This WWE star turned movie star works just four hours a night.
Johnson, a Hawaiian-born man, clocks in at 49 and wakes up at 4 a.m.
To maintain his amazing physique, he would likely exercise at least 25 days per week.
Muhammad Ali - 6.5 Hours
The greatest boxer ever put many of his opponents to sleep and would end up between 10 and 4:30am.
He would split his time between training and prayer as a devout Muslim.
His evening routine would include a short walk after dinner, followed by a quick wash and prayer before he fell asleep.
Serena Williams - 7 Hours
It doesn't take a hawk eye to see when Serena is on the move, but we cannot confirm or deny that her snoring is a racket.
After a day of socializing and work, the tennis star gets seven hours sleep each night between midnight and 7am.
The former world number one, 39 year old, is also a mother to a young daughter. Her slumbers may be interrupted by her little girl every now and again.
Cristiano Ronaldo - 7.5 hours
Ronaldo is perhaps the most bizarre of all the stars.
Ronnie prefers to have a short nap every hour, rather than a big break at the end of each workday like many of us.
He relaxes with friends after dinner before going for a swim at 10:00pm.
Then he takes one of his signature naps from midnight until 3am, before getting up to start the day.
Ronda Rousey – 8 hours
The routine of WWE and MMA star Rousey seems very standard.
Between midnight and 8am, eight hours
Simple and elegant.
Tiger Woods - 8 hours
Woods is widely considered to be the greatest golfer of all times.
To maintain these high levels, the star spends eight hours fantasizing about sinking putts or splitting fairways.
He sleeps between 10pm and 6:30am, proving that the early bird really does catch the fish.
Tom Brady - 9 Hours
Brady, like Woods is considered to be the best in his field.
For his unrivalled talent and sustained success, the former New England Patriots Quarter-back is revered around the globe.
The 44-year old - still playing for Tampa Bay Bucacaneers at the time - ensures he gets to sleep nine hours every night between 8:30pm and 5:30am.
Stephen Curry - 9 Hours
Stephen Curry, a basketball star, is another record-breaker in NBA history.
Another Golden State Warriors point guard, the Golden State Warriors point guard, is not one to rest easy. He prefers to sleep for nine hours every night between 11pm and 8.
