Niuigimi is Niger border town. No hotel. But there is a guy who know some english and he will be ready to host you in his house while waiting for the truck to Chad. Ask for Modo Gaptia.
You will sleep on the sand in their courtyard… If you are lucky you will find your truck after day o two… If you have companions you will be able to rent a 4WD car to nearest settlement in Chad: BOL – it cost us 250 000 CFA and full day of desert driving…