Blood and iron in blood make it one of the most typically challenging stains to get out. It's best to deal with a blood stain when it's still quite new because these two components become very difficult to remove after they oxidise and dry (if possible). The following cleaning techniques can be used for How to Get Blood Out of Mattress

Baking soda and vinegar is a tried-and-true remedy for fans of natural, homemade cures that can remove even the most difficult stains. The following is a natural method for How to Get Blood Out of Mattress:
● White vinegar should be sprayed on the stain after baking soda has been immediately applied.
● Wait for 30 minutes while it bubbles.
● Dab the solution away with a clean towel, or remove any leftovers with an upholstery vacuum attachment.
● Until all traces of the solution are gone, dab with clean, cold water.
● Beware: vinegar can have a strong scent. Be sure to rinse and repeat the process until the smell is gone.