Grammar fix
deep sleep
restful sleep
A period of sleep when you are sleeping very well and your body and mind fully rest, usually without waking up easily.
collocationB1common
Hear it in context
Notice where the phrase sounds natural.
After a long day, I fell into a deep sleep and didn’t wake up until morning.
Getting enough deep sleep is important for your health because it helps your body recover and your mind feel clear the next day.
Fix the pattern
One small grammar move makes it sound right.
Not: I was in deep sleep when you called.
Say: I was in a deep sleep when you called.
'In A deep sleep' needs the article.
Which sounds natural?
Tap the one a native speaker would say.
'Profound slumber' is literary; 'in a deep sleep' / 'fast asleep' is natural.
Build natural chunks
Words that usually travel with it.
deep sleep
- fall into
- a
- in a
- restful