When we are sleeping, the Lord is much awake and in charge. The night shift belongs unto the Lord. And there is a purpose for sleep which we need to understand. Sleep is an antidote for stress. In short, most of us experience excess stress.
Sleep serves to prevent damage to the heart from excess stress, and to restore our depleted energy.
But, since we spend many sleepless nights, this preventative and restorative process is not taking place. Again, Dr. Archibald explains, we go to bed too high on adrenalin. This excess adrenalin, produced in order that we can perform in stressful situations, also prevents us from sleep. Thus, we are using energy, but not replenishing it, and all the while, physical damage is occurring in our body. We may be rendered disabled in the Lord's service long before He is finished with us.