Encasing mattresses is one of many good parts of a solution, but it doesn't get rid of the infestation. There are going to be other bugs away from the mattress, hiding nearby. What mattress covers are good at is entombing the sometimes large number of bed bugs that can live on a mattress. And because the covers tend to be uniform in color and don't have a lot of seams that the bugs can hide in, it's easier to see the insects.
Also, we do have pets and a 10 year old living with us as well. 3 cats and a dog. They have been fine with the bleach smell, though it seems to be making one of my cats a little wild. A suggestion I have, if you try what we’re trying, is put the animals up until the KABOOM has dried, because, where as our animals are seemingly okay, it could still harm them. Luckily our cats are indoor/outdoor cats, so we can put them outside while we do it.
The size of bed bug bites varies with a number of different factors. Bed bugs inject an anti-coagulant along with their saliva when they pierce the skin to take a blood meal. This anti-coagulant is mostly responsible for how a person reacts to the bite and determines the size of the bug’s bite. Since people will have various sensitivities to the bed bug’s bite, the size of the bite will vary, as well. Another factor that influences the size of a bed bug reaction is the number of times a person is bitten. Bite reactions of people bitten many times are also variable, and their response may be either more or less intense as the number of bites increases.