covers
n. C / U A2 Elementary US //ˈkəvɝz// UK //kˈʌvəz// cov·ers
n. the layers of fabric on a bed, like sheets and blankets, that keep you warm while you sleep.
n. the protective fabric layers placed over a bed, typically including sheets, blankets, and quilts. Plural in form when referring to bedding; often used with the verb 'under'.
It was so cold that I stayed under the covers all morning.
She pulled the covers up to her chin and quickly fell asleep as the rain hit the window.
The child huddled beneath the heavy wool covers, seeking refuge from the shadows that danced across the bedroom walls in the moonlight.
Usage
Usually plural when referring to bedding. Often follows the preposition 'under'.