That's because of gravity. During the day we are standing up and gravity is pushing our body towards the ground and that force makes us shorter so when you sleep at night you are laying flat and the force isn't affecting your height in that position because you are laying flat so when you wake...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Read more about our cookie policy.