Where does all the energy go when we sleep?

Question

Where does all the energy go when we sleep?

Answer 1

probably the mattress but that's just my guess

Answer 2

It takes a rest also.

.and builds up inside you

,,,to be ready for the next day...

Answer 3

In sleep or brain activity can increase - that is bound to use up a fair amount of energy -- we also move a lot while we sleep -- more energy used

Answer 4

When you sleep all of your body's energies are still in motion. The energy continues to flow through and around you. The only real difference is probably that the energy is much more calm.