Correct

睡姿

/ shuì zī / 
Strokes

Definition

sleeping posture

Example

As a Noun

sleeping position

1
Zuìjiā
最佳
shuìzī
睡姿

best sleeping position

2
Yīngér
婴儿
de
的
shuìzī
睡姿

infant's sleeping position

3
Jiànkāng
健康
shuìzī
睡姿

healthy sleeping position