[This review was collected as part of a promotion.] I had no idea how much my old mattress was affecting my sleep until I got this new one! After the first night, I woke up feeling refreshed. For the first time in years, my back didn't hurt. I didn't toss and turn or wake up multiple times to adjust my body. I used to wake up with aching sometimes numb areas from the pressure points on my old mattress; with this new mattress, I don't have that anymore.