Amitabh Bachchan, who is recuperating from a mild ailment, says a good night sleep helps in curing ailments, while adding that now he feels ‘cured.’ The 73-year-old thespian also credited superstar Shah Rukh Khan, who once mentioned to him that a good night’s sleep helps in curing ‘many ailments.’’ “Shah Rukh once mentioned a good night’s sleep cures many ailments, body mind… All true. I feel cured today!” Amitabh tweeted on Saturday. Big B also underwent some medical tests last month.