Maybe you needed a certain vitamin that was in the soil or plant. Maybe go to hypnosis.

I read horror stories about sleeping pills that make people sleepwalk and do really dangerous things, including take more of the drug and overdose. I even read that a little kid's parents died in their bed after overdosing while sleepwalking. I can't stand that doctors prescribe such poison. Years ago they used to sell teething medicine full of morphine and alcoholic "food tonics" for pregnant women. Nothing has changed. >:(

Lets face it there are worse things you could find in your mouth when you wake up

zombie vs plant?

If this has taught me anything it's that I really should stop playing plants vs zombies before I go to sleep or this could very well happen to me someday. Seriously though you should get your stomach checked out.

At least it wasn't a cactus

That, or you have a very angry, very weird housemate, if you have one at all.