When you are conscious and alert, your mind creates beta waves. And as you start to relax, your mind produces alpha waves. The start of the rest cycle is known as the transitional stage between being alert and being snoozing. Amid this stage, your cerebrum produces theta waves. Theta waves are to a great degree moderate mind waves. This keeps going around five to ten minutes. In the event that your mate wakes you amid this stage, you may state that you were not by any means snoozing. The second phase of rest endures around 20 minutes. Amid this stage, the mind produces rest axles which are blasts of quick and cadenced cerebrum wave action. This is the point at which your body temperature brings down and your pulse backs off. Individuals invest around half of their energy resting in this stage. In the event that your flat mate woke you up amid this stage, you most likely would be confounded by your environment. The third stage is now and again alluded to as delta rest. Your brain produces delta waves amid this phase which are moderate and profound mind waves. Amid this stage individuals are not extremely responsive and sounds in the surroundings are not perceived at this stage. It is a transitional period between light rest and deep sleep. This stage keeps going around 35-45 minutes. If your mate awakens you amid this stage, you will feel very disoriented.