Sleep is an important aspect of child development and health. Disparities in childhood sleep have been observed as early as infancy, but little is known about the factors contributing to them.

中文翻译：

---

与非西班牙裔白人婴儿相比，背景和育儿因素导致西班牙裔/拉丁裔的睡眠时间较短。

睡眠是儿童发育和健康的重要方面。早在婴儿时期就已观察到儿童睡眠的差异，但对导致这些差异的因素知之甚少。