img width="421" src=""> https://fog-power.blogbright.net/exactly-what-should-a-bed-mattress-topper-look-such-as-3f-10-reasons-the-reason-why-you-need-one is a cushion device that is connected on top of the existing mattress. It helps maintain the bed mattress cozy and also adds comfort, even if you are resting on it.