Really bad allergies can be a pain and if you are finding yourself waking up with sore eyes and a runny nose it could be your bedding to blame. I was watching a science show on television and they showed how many dust mites are on an average bed and it was covered. I don't think I have ever seen anything so disgusting in my life.
I have found that if you can't afford a good hypoallergenic mattress there are covers you can buy for your regular mattress. The mattress cover is basically a shield trapping old dust mites and preventing new ones from getting close to you.