Noun
いこい
私はうちの食堂を忙しいサラリーマンの憩いの場にしたいんです。
I want to make my restaurant a place of rest and relaxation for busy salarymen.
If 憩う is to rest, then this noun version (I know it looks like an adjective, but it's not) would be rest.
The reading comes from 憩う, so if you know that you can rest easy.