Nova Dreamer: $600+
Rem Dreamer: $200
Friendship: Priceless

What if you had a friend/spouse/gf bf/someone you hired off Craigslist, replace a Dream mask? Just estimate the time you'll be in REM and they check on you. Then if you are, they signal you somehow. Most likely LEDs or something.

What does everyone think? How likely is this to work?