I had a 14 hour layover in Abu Dhabi, yes not the best planning but the ticket price was good. Because I was a member of the Etihad frequent flier club and this was my 3rd flight they gave me, gratis, dinner and breakfast coupons at the food court and a very nice hotel room. It made a 14 hour layover very tolerable. On the return flight I had 'only' a 6 hour lay over but was allowed access to the Etihad Lounge. They had a very nice private room for a shower, free buffet, free beverages, comfortable chairs, it was clean and it was quiet.