Hi there!

I'd call the hotel that NWA uses for layovers... they normally extend a nice discount to us on our days off. you should also have a discount with any accor hotel (comes in handy world wide) all you need is your comany contract info!
I've used them for fabulous discounts (83 a night in London!!) We do get a discount with Hilton as well up to 50% off... will be happy to mail you a link to book online!

Good luck, let me know if I can help!

Sven