Waking up at 3 or 4 a.m. can be caused by several factors. Identifying these can help pinpoint underlying issues. Stress and Anxiety: High stress or anxiety can disrupt sleep, leading to early awakenings and difficulty falling back asleep,

Sleep Disorders: Conditions like insomnia and sleep apnea can cause frequent night awakenings. Insomnia makes it hard to stay asleep, while sleep apnea involves breathing pauses. Hormonal Changes: Hormonal shifts, especially during menopause,