How to deal with fleas in my bed safely?

Hello everyone

My cat got fleas but I noticed after a while. She usually sleeps somewhere else but occasionally she gets into my bed.
I noticed the cat and started treating her but couple of days later I noticed that my bed became a playground for fleas. I read everything to read, but there is not a lot of info dealing with the bed part. I only use cotton bedding so my mattress is filled with cotton and my covers are one thick cotton quilt, not to mention heavy cotton pillows, these stuff are not made to be washed really.
I found someone saying that dusting the bed with boric acid is safe but I don't know. I read about Diatomaceous Earth but also read that it's not safe to breath it.
I wanna get rid of these fleas but not myself in the processes!

Any suggestions??

When my family pets would get fleas I would put rosemary boughs under my sheets. Not only did the fleas stay out of my bed, usually my cat (who always slept there) never had any. Dried rosemary might work, but I prefer fresh.  My mother was also successful driving them from the house when she sprinkled the spice on all the carpets left it for a couple hours and then vacuumed every day for a couple weeks.  Diatomacious earth still works faster and more reliably, and not everyone likes rosemary's smell, but it's an alternative.  These days I would use rosemary in the bed and diatomacious every where else.

hey alex...
welcome to the forums.

there are "sacks" for pillows and blankets (like you normally use) but so dense/tight that bugs wont be able to get in and out. they re made for people who are allergic to (the droppings) of house dust mite. if might can t get in/out, then fleas wont. there should be bags for mattresses, too.

putting stuff into the dryer (at some certain point) will kill fleas.

ozone might help. they sell cheap generators for cleaning pond-water. but the gas can be dangerous in higher conecntrations, so read into it.

rosemary is a good idea. it could be ordered as essential oil via amazon. the cheapest one might be good enough.