Weight loss: Follow these steps to get a flat belly overnight 01/7Steps to get flat belly instantly. ... 02/7Avoid late night dinner. ... 03/7Drink a fruity pitcher of water. ... 04/7Munch on nuts. ... 05/7Scrunch on fruits. ... 06/7Engage in a full-body exercise before bed. ... 07/7Get plenty of sleep. Jan 26, 2021