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“Try to be in bed at 10 p.m.,” Sulack said. “That’s when melatonin levels peak. Because of this, every hour of sleep you get before midnight is actually worth three hours of sleep after midnight.” And not only should you aim to reap the benefits of getting to bed earlier, but getting an adequate amount of shuteye each night is also essential to your health. “Sleep deprivation can impact your immune system, your cognitive abilities and your endocrine system,” said Angela Martindale, a celebrity lifestyle coach, fitness trainer and nutritionist. “Lack of proper sleep can also cause weight gain or weight loss and can lead to depression. Try to put yourself on a regular bedtime schedule to ensure you get seven to nine hours of sleep at night.”