It's alright. But I wouldn't want to spend 11 hours there!
I suspect that the OP won't be eligible for free transit accommodation since I believe that there should be a shorter connection available than the one booked (but without knowing the dates it's tricky to confirm that).
He won't be eligible for free transit accommodation because he's flying on Awards tickets.
I agree with not spending 11 hours in the lounge though; Al Mourjan is excellent, but not 11 hours excellent!