The best replacement for asleep is awake.

The best alternatives to asleep are rated as following:
★★★★★  awake
★★★★★  unconscious
★★★★  sleep
★★★  sleeping
★★★  asleep
★★  to sleep
★★  fall to sleep
★  stay asleep
★  ambiance
★  sleepy
★  go to sleep
★  fell asleep
★  fall asleep
★  fast awake
  passing out
  fell to sleep
  falling to sleep
  back to sleep
  while you are awake
  ambience
  staying asleep

Your alternative for asleep is not listed? Suggest!
Speaking about asleep, one probably shouldn't forget about dreaming.

Other search terms related to asleep and their ratings are:
★★★★★ dreaming
You have in mind a companion for asleep and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of asleep in all years. Click on graph for more.
asleep
awake
unconscious