If you wake up sneezing and sniffling, you may have dust mites in your bed. The National Sleep Foundation recommends the following to prevent dust mites: run a dehumidifier in your bedroom, as dust mites thrive in humid conditions; buy dust-proof covers for your pillows and mattress; wash bedding in very hot water and dry it in the hot cycle every week; and dust and vacuum your bedroom weekly.
National Sleep Foundation, October 2016