Hi ! I would be thankful if you help me with my question. "Bring light in life" Is this sentence correct? How can i make it better? And shouldn't we use into instead of in ???

Hi guys...can you please check this paragraph for me?thanks alot❤ . . According to experts' researchers,humans need different amount of sleep in different periods of their lifetime.eg. Newborns should be asleep about 16 hours a day, most teens need about 9 hours of sleep while for adults 7 or 8 hours is enough. But based on a research many teenagers do not get this amount of sleep and they do sleep for 6 hours a night which means 3 hours less than standard sleep time.