What is the reason why the baby is restless and easily wakes up during sleep?

Patient's question:

Patient Gender: Female
Patient Age: Four and a half months
Detailed Condition and Purpose of Consultation: For the past one and a half months, she has been experiencing restless sleep and frequent waking, waking up roughly every hour. Her appetite has also been poor, but her bowel movements are normal. Medical examinations have shown no deficiencies in trace elements and no elevated blood counts, with normal stools. Her daytime mental state is also good. What should be done in her case, and are there any other tests that need to be conducted?

Doctor's answer:

The reasons and solutions for a baby's restless sleep and crying
1. Deficiency of trace elements, leading to decreased blood calcium, which increases the excitability of the brain and vegetative nervous system, causing the baby to sleep uncomfortably at night. Calcium and vitamin D need to be supplemented.
2. Too hot or too cold.
3. Indigestion, poor digestion, heatstroke, or overeating at night can also lead to sleeplessness. It is recommended that solid foods like porridge or noodles should be fed at least two to three hours before bedtime, and a little milk should be given before sleep.
4. If the baby cries, do not react immediately. Wait a few minutes, as most children wake up at night but fall back asleep naturally within a few minutes. Calcium supplements should be given to the child, with one fish liver oil capsule per day, which should be taken consistently. Calcium can be taken in the form of gluconate calcium or Diacalc granules, both of which are effective. Diversified is also important.