linen · noun /ˈlɪn.ɪn/
linen
C2 U a strong cloth that is like rough cotton
Dictionary example:
a linen jacket
Learner example:
It has all the basic seams, and so far I have tried it with denim, cotton, linen, silk and even with leather, and it does the job perfectly. (Certificate of Proficiency in English; C2; Danish)
linens
C1 cloth items for the home, such as sheets and tablecloths
Dictionary example:
They want to buy new curtains and linens for their new home.
Learner example:
I'm afraid I didn't have enough time to change [the] linens o[n] the bed, so please change them by yourself, you'll find them in the second drawer from the top in the bedroom. (Certificate in Advanced English; C1; )