Which statement best describes infant sleep by the end of the first year?

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Multiple Choice

Which statement best describes infant sleep by the end of the first year?

By the end of the first year, sleep becomes more consolidated and aligned with a clear day–night rhythm. Most of the infant’s sleep occurs at night, with one to two daytime naps remaining. This pattern reflects maturation of circadian rhythms and routine that supports longer overnight sleep and shorter, predictable daytime naps. The other patterns don’t fit typical development: daytime-dominant sleep ignores the stronger nighttime sleep drive that develops, an even split between day and night doesn’t reflect the clear nightly consolidation, and resting mostly in the early morning hours doesn’t match how night sleep becomes the primary block.

By the end of the first year, sleep becomes more consolidated and aligned with a clear day–night rhythm. Most of the infant’s sleep occurs at night, with one to two daytime naps remaining. This pattern reflects maturation of circadian rhythms and routine that supports longer overnight sleep and shorter, predictable daytime naps. The other patterns don’t fit typical development: daytime-dominant sleep ignores the stronger nighttime sleep drive that develops, an even split between day and night doesn’t reflect the clear nightly consolidation, and resting mostly in the early morning hours doesn’t match how night sleep becomes the primary block.

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