Correct

成眠

/ chéng mián / 
Strokes

Example

As a Verb

fall asleep; go to sleep

1
Zhǎnzhuǎn
辗转
bù
不
néng
能
chéngmián
成眠

toss and turn without getting a wink of sleep

2
Nányǐ
难以
chéngmián
成眠

can hardly fall into sleep