Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

could do sth in their sleep

Definition

If someone could do something in their sleep, they can do it very easily, usually because they have done it so often: I've done this recipe so many times I could do it in my sleep now.Easiness and simplicity
(Definition of could do sth in their sleep from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Browse related topics

You are looking at an entry to do with Easiness and simplicity, but you might be interested in these topics from the Easy and difficult topic area: