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Wiktionary
well-rested

a. Having had sufficient (or even more than enough) sleep or rest to function optimally during waking hours. alt. Having had sufficient (or even more than enough) sleep or rest to function optimally during waking hours.

Usage examples of "well-rested".

Now, Gunit Sangh probably assumes this, so he'll try it anyway, not to expect anything but just to test out our defenses a little and keep us all awake until dawn when his well-rested troops will make the assault.

Now, Gunit Sangh probably as­sumes this, so he'll try it anyway, not to expect any­thing but just to test out our defenses a little and keep us all awake until dawn when his well-rested troops will make the assault.