It seems that back-to-back promotions of his forthcoming release, the much-awaited "Jab Tak Hai Jaan" (JTHJ), is taking a toll on Shah Rukh Khan's sleep.

"En route to Jalandhar for JTHJ... haven't slept a wink all night... eyelids are feeling like a mattress. Hope it's a long slow flight, " Shah Rukh tweeted Wednesday morning.

JTHJ is late filmmaker Yash Chopra's last directorial venture. He passed away Oct 21 following multi-organ failure.

Releasing on Diwali, the movie has two leading ladies - Katrina Kaif and Anushka Sharma.