Sickbed
noun, の adjective
A sick bed is a sickbed. If you're in that bed, you're probably sick.
びょうしょう
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
彼は病床に臥してついにまた起ちません。
He laid down on his sickbed, never to rise again.