Ever been so tired , right before waking up you have a bunch

[UndertheOcean]

of dreams about waking up , only to wake up in a different dream .... and this goes on for a while , leaves you frustrated and wondering if you will ever really wakeup.

[Orrex]

1. Very disorienting

I've had that experience with just two "levels" of dreaming/waking, and it totally messed me up for a few minutes after actually waking. If I happen to talk to someone during those few minutes, I tend to make a fool of myself.