Caution: Mattress may be infested with some bugs.

I purchased this item during the Memorial Day sale. There is no nice way to put this but the item appears to be infested with some type of bug. I have small bites across my body but primarily on my legs. I thought that perhaps I just got a bad mattress so I asked Walmart for a replacement (mattress seems decent but a little weak [e.g. hard/firm when sleeping on it but caves in when sitting on it]) and was told that they would send a vehicle to collect the infested mattress in 5 days, return it to the seller in ? days, then send me a replacement 3-4 days after the seller received the mattress. Basically, I'd be out of a mattress for a period of time waiting for a second mattress that may have the same issue. In Walmart's defense, I'll probably just return this mattress after I have enough money to purchase a different mattress - the sale is over and the price for this item has jumped $49.