Can we say that "you need a sleep"? [closed]

Someone told that to me, I want to know if its correct grammatically. Can we quantify sleep? Can we say a sleep? I think we should say "you need to sleep".

Sleep can be a countable noun, meaning 'a period of sleeping'.

[ C ] (countable)

a period of sleeping:

UK You must be tired after all that driving - why don't you have a little sleep?

He fell into a deep sleep.

You'll feel better after a good night's sleep.

[ C ] (countable)

informal a night's sleep, used especially when saying how far away in time something is:

It's only one more sleep till we go to Disneyland!

How many sleeps until I see you again, Daddy?

Sleep (Cambridge Dictionary)