Are clothes countable?

Are clothes countable?

The word "clothes" itself is plural, so there is nothing uncountable. But note: clothes has no singular form, so it can't be said a clothe garment.clothing He took off his wet clothing

Arm or arms
1 He was asleep with his head on his arm./ arms
See this sentence expression, some information on the Internet
with his head on his arm / arms.
It's OK to use both singular and plural numbers
In addition, is there any other way to write when you sleep with your arm on your pillow?
The little boy fell asleep in my arms
I was so sleepy last night that I soon fell asleep in bed
English translation
I don't know what to give him for his birthday

1 arm without s
2：He fell asleep with his head
3: The boy lay feel in my arms
4：I was too sleepy last night, lying in bed and fell asleep quickly.
5：I'm very tangled, don't know what to send him a birthdaygift.

Is cloth a countable noun? Why?
Waiting.

Cloth (cotton, wool, synthetic fiber, etc.) fabric
A piece of cloth; a tablecloth; a napkin