Sleep didn’t come easy for these star athletes

PRINCE FIELDER Texas Rangers first baseman left training camp last week to find the source of his sleepless nights. The culprit? Sleep apnea. He’s now back in camp and sleeping with a breathing apparatus. MOOCHIE NORRIS Norris started 445 games over an NBA career that spanned 10 seasons, battling insomnia for much of that time. Recent tweets indicate he’s still dealing with it. ROGER FEDERER Swiss tennis legend eached the finals at Wimbledon and the U.S. Open last season and credited his late-season surge to his new sleep routine — he aims for 12 hours daily. MICHAEL PHELPS U.S. swim phenom claims to eat 12,000 calories a day to fuel his workouts. Before the 2012 Olympics he began sleeping in a hyperbaric chamber saying it aided his recovery. ANDRE IGUODALA Warriors defensive stopper overhauled his sleep habits when he turned 30, ditching all his electronics late at night and hitting the sack four hours earlier. He was the MVP of last year’s NBA Finals. Morgan Campbell