最初的熟睡关键是枕头，理想的枕头是能够维持颈部与头部之间的自然曲线，又不会对颈部造成压力。

The key is the first sleeping pillows, pillow is ideal to maintain the neck and head between the natural curve without causing pressure on the neck.

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如果可能，避免用枕头，以防止颈部和脊柱过分紧张导致的疼痛。

Avoid using a pillow, if possible, to prevent pain from over-extension of the neck and spine.

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当婴儿长到3~4个月，颈部脊柱开始向前弯曲，这时睡觉时可枕一厘米高的枕头。

When the baby grow to 3 to 4 months, the beginning of the forward bending of the spine and neck, then go to bed when one centimeters high pillow pillow .

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