Review on 🛏️ Amazon Basics Twin XL Bed Topper Pad - 3-Inch Memory Foam, Quilted, Breathable, Gusseted, Fitted - Down-Alternative by Monica Williams

I have and need a very firm mattress so that the spine stays straight during sleep, this is necessary so that the mattress does not sag in the middle during sleep. But the catch is that the pressure points at the hips and shoulders need to go down a bit to avoid back and shoulder pain, and the required firm mattress does not "sag" at these pressure points. This supportive yet soft and dense 4 inch thick memory foam allows my hips and shoulders to sink into the pillow at these pressure points without the mattress sagging in the middle. And it allows my spine to be in the most natural position, relieving pressure from the lower back. I no longer have severe back pain after waking up. I highly recommend this 4-inch dense foam pillow for those who need a hard, firm mattress, as it allows for the necessary "sag" at pressure points without the sagging of a softer mattress. This 4" Revain Basics Pad is gorgeous.