The Collaborative International Dictionary
Wakefully
Wakeful \Wake"ful\, a. Not sleeping; indisposed to sleep; watchful; vigilant.
Dissembling sleep, but wakeful with the fright.
--Dryden.
[1913 Webster] -- Wake"ful*ly, adv. -- Wake"ful*ness, n.
Wiktionary
wakefully
adv. In a wakeful manner.