Coming from what sounds like a bunch of tech bros, this sounds deeply dystopian - sure, we'll work you to death even harder during the day, but that won't matter - you can be and do what you like in your dreams.
Imagine a hard day's work, 16 hours of slogging while you're awake
You get home, eat something and then head to bed. You put on your headband and select some setting on your phone and then drift off to sleep.
Now you are working your third job, while you sleep. Solving captchas. A/b testing app logo designs. Completing surveys on products you've bought while you're awake.
Stuff that AI will never be able to do because the value is from being human. And yet is simple enough to do in your sleep.
You wake up with a few less cents in your overdraft and you're ready to start a brand new day...
Oh for sure - but that bit comes later - we need to figure out how to monetize the lucid dreams first. If we get to that point, inserting advertising seems pretty plausible too.