But get yourself a good vac and rip of your sheets off, turn the vac on and start cleaning your mattress, just like you would with the floor inside your home. If you have a clear barrel, You should be able to see the white dust, which is dead skin and dust and also enjoying a few dust mites inside.
If you have a Dyson - GREAT! if not, please check out Dyson's vac's, you can search here
You'll be taken back by the amount of stuff you find from your mattress. NOW REMEMBER YOU BREATH THAT EVERYDAY!!!!