While teens aged 12-18 years might get away with 8-9 hours, everyone in the house must get an appropriate amount of sleep every night if they want to be their best the following day.
Between getting the kids out of bed, ensuring everyone has breakfast, getting bags prepared, and dealing with the inevitable lost sock, getting as much prepared as possible the night before will make your morning go far smoother.
We use colored hooks to hang coats and backpacks (packed and hung the night before), then matching colored storage bins hold smaller items, including shoes and sports equipment.
Whatever the morning throws at you, the best way to cultivate a smooth morning routine is to stay calm, even when things go astray.