The mattress itself is very heavy (king weighs 142 lbs). I exercise 60-90 mins per day, strength, yoga, cardio, etc. so a mattress with good lower back support is a must. Based on my quiz (was waking up with back pain every day) the dusk was recommended for me. However, within the first three weeks of use, i find it’s a bit too soft for my liking, and i think I’m a little extra disappointed because i assumed the sleep quiz would point me to the correct mattress. I asked for a firm mattress topper, so let’s see if that helps. 

One positive is that the bed is very high quality and quite comfortable to lay on. I was just hoping the mattress would be more firm and have less give. 

Also i find that the hybrid nature of the bed makes it transfer a lot more motion than an all foam bed, so if you move a lot in your sleep, maybe this isn’t the mattress for you.