I stumbled across this and thought I would share it!
STEP 1: Remove all bedding and throw it in the wash.
STEP 2: Lift up your mattress and vacuum in between the mattress and box spring.
STEP 3: Add 1 cup baking soda, and about 5-6 drops of essential lavender oil to a Tupperware container. Pop the lid on, and shake well.
STEP 4: Empty Tupperware into your strainer and sprinkle it all over your mattress. Let sit for up to an hour.
STEP 5: Using your vacuum's hose, suck up all the baking soda. While you're at it, say "adios" to all of those nasty bed bugs and dust mites — yep, they're in there! Baking soda is great because it draws up any deep dirt and ick that has been lying there in your mattress, along with any moisture. Also, the smell of lavender is amazing, and will make you sleep like a baby!