Wadi rum is a desert in Jordan, not just sand but lots of sand combined with rocky formations. There are no roads available and 4×4’s are the best way to get around. Hotels are not typical either – in the desert you are expected to sleep in a bedouin tent.
Since there is not a lot of artificial light, the nights can be very dark. Keep an eye on the schedule of the moon if you want to see a starry sky. The moon is pretty bright.