Please help me fix my mattress I have nowhere to sleep?

So after trying to clean cat pee off my mattress I decided to pour some baking soda on as I had read online and all this did was make my mattress crusty and disgusting and I can t get the baking soda out even though it s almost completely dry. I don t have a proper vacuum and it wouldn t help anyway because the... show more So after trying to clean cat pee off my mattress I decided to pour some baking soda on as I had read online and all this did was make my mattress crusty and disgusting and I can t get the baking soda out even though it s almost completely dry. I don t have a proper vacuum and it wouldn t help anyway because the baking soda is crusted onto the mattress. I don t know what to do this is a new mattress and I can t get a new one. Please help.
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