These are the ways professionals clean the mattress:
- Vacuum the mattress
- Clean it with stain remover
- Sprinkle baking soda all over the mattress
- Vacuum again
- Flip the mattress repeat the process
Basically baking can be the best alternative solution, you can sprinkle a layer over the entire top of the mattress and leave for several hours then use a power full vacuum.
This process can easily penetrate beyond the top layer of the mattress it can be helpful to steam clean every few months.
As per the experts, it is not always advised to clean your mattress with a carpet cleaner, because some of the carpet cleaners can be used to clean mattresses, pet stains.