Most adults need somewhere between 6-10 hours of sleep per night. Different people need different amount of sleep to feel rested. If you are frequently tired or irritable during the day and find yourself sleeping more than an extra 2 hours per night on weekends, then you are probably not getting enough sleep during the week.
Background and Identification ¶ . The iPhone X (as well as the 8 and 8 Plus) was formally announced by Apple on September 12, 2017. New features include a new, almost bezel-less display, a new hexa-core system-on-chip with improved system and graphics performance, a glass back, and wireless charging using the Qi Standard.