Correct

入梦

/ rù mèng / 
Strokes

Example

As a Verb

fall asleep

1
Zuówǎn
昨晚
zàoyīn
噪音
tài
太
dà
大
  
,
wǒ
我
nányǐ
难以
rùmèng
入梦
  
。

I couldn't sleep last night because of the noise.

2
Ānrán
安然
rùmèng
入梦

get/go into a dead sleep

As a Verb

(of sb) appear in one's dream