BMMB 10" King Breathable Durable Support Hybrid Mattress Memory Foam Pocketed Coils Springs

The spring mattress was packed tightly in a bag inside of a box. It didn't fly open like a rocket when you cut the plastic. Unroll it nicely on the bed frame or the floor where you left it for 72 hours, there is no odor to it at all. The mattress plumps up nicely and perfectly. The comfort level I would say is probably a 8 or 9 out of 10. It does have a little bouncyness to it. if you are only 150 lbs but it is bouncing,too. The sides when you sit on them donot go down . You don't sink into the bed, either, which you used to hate about your previous pocket spring medium-firm mattress.It is good for people who have back and shoulder problems . It will completely transform your sleep experience. From the moment you lay down, you would feel the difference. The innersprings are perfectly supportive, offering just the right amount of firmness without being too hard. You will wake up feeling well-rested, with no aches or pains. The mattress also sleeps cool, which is a big plus for you. It's clear that great attention to detail goes into its design, and you will be very happy with the quality. If you're in the market for a new mattress, this is good to buy .