@carolkean I never heard of anyone here ever having bedbugs.
I wonder if it exists here.
We turned the mattress once a week and vacuumed it against mites/allergies.

Now you mention hay...
My Granny had matresses filled with "seagrass" it looked like hay. We had more filled with it and I slept well on it.
It is a good option. Pity hay is dusty. You could make a mattress yourself.

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