I noticed that the last time I was in LV that the Pyramid Cafe at the Luxor was only open for breakfast and an early lunch. The restaurant called Raffles at Mandalay Bay is the same. Luxor has their deli open 24 hrs. but many of these places that used to be open 24 hours are now closed. In the city of overindulgence, good food at 4 in the morning before you go to bed is a must, and I'm not talking about room service.
No offense to Mc Donalds, or to room service, but I want a good omelet or cheeseburger before I go to bed.