A. Human beings grow in their sleep physically but they later shrink to the same height as earlier upon waking up. Sleeping 7-8 hours is really important some people do not do not and as a result of which fall terribly ill.
2. When you sleep, you grow by about 8mm (0.3in). The next day you shrink back to your former height. The reason is that your cartilage discs are squeezed like sponges by the force of gravity when you stand or sit. (Top 15 Amazing