yes.
@ikonos, you will most likely not be able to get in to the Domestic Terminal at least until 4AM or so.

I strongly suggest you go to the SaharaStar Hotel (very very close to the domestic terminal). The food at the coffee shop is excellent. (24 hours). Restrooms are super clean.

I would rather spend my time at the SaharaStar coffee shop, than try to get in to some lounge at the airport. Its money well spent. (its a five-star property).