This is not really a firm mattress. Some areas of the mattress are softer than others. Our backs have hurt every morning since the purchase of this mattress. I would love to return it but there is no way for me to transport a king mattress back to Sam's Club. It was delivered vacuum sealed in small box and then expands to full size.

I purchased this king mattress recently and am loving it!!! So comfortable and although quite heavy ( two people with strength should move and install)! There was no odor upon unwrapping it and it adjusted to final size rather quickly. I am going to be replacing another mattress at my home with this brand soon and I’ve recommended it to several family members.

Defective mattress. Less than a week mattress cover bunched up 4 inches across center of mattress. Then you have this hump in the middle of the bed under your back. Will be returning when different replacement mattress (ordered) is received. Also if you return a mattress they want you to put it in the original box (not gonna happen) or wrap it in plastic.

Great mattress, first time on anything before with springs. 2 back surgeries and 5 mattresses later, THIS one is letting me get some sleep finally. I don't know who the people are that read this , but if you have back problems, this one so far has done a good job.

I was iffy buying a mattress in a box, also reading reviews that said it was too soft. I went ahead and bit the bullet and purchased it and my husband and I are super satisfied!! We are side, stomach and back sleepers and this bed was not to soft. It’s the perfect amount of softness and it keeps you cool throughout the night. For reference, I’m 26 and my husband is 30. We have no problem getting in and out of the bed. Sometimes we prefer to lay in bed and watch movies rather than the couch because we can super cozy and comfy in this bed.

Mattress is very comfortable - softer top with firm support. A high quality mattress that doesn't break the bank. It was easy transport since it comes in a box. Be sure to have the box spring/platform bed ready for the mattress because once you unravel and cut open the plastic it is heavy and harder to move around then when in a box :)

Bought 2 xl singles for our Member's Mark split king adjustable frame. The best sleep we have had in years! Very well satisfied with the mattresses and the frame. They are more comfortable than others we tried out at furniture stores that were triple the price!

Very soft not a medium firmness. I set up the bed and the first night was okay but it has progressively gotten softer and softer as I’ve slept on the bed. I’ve tried rotating it to see if that would help but it hasn’t. I’ve only had the bed for 2 weeks now.

This mattress is soooo comfortable, and sturdy to! We are using it for a kids loft bed, no box spring is needed, and it fit perfectly for the size of the frame. Tip: place mattress on base BEFORE you cut the plastic cover, it fills with air to size very quickly.

I give 1 star because I’m sure other people like it that soft but I expected it to be a little firmer for medium firm, but it was so soft you sank so far in it hurt my back when laying on my stomach. The smell was just plain god awful and didn’t go away even after airing it out for over 48 hours with windows open in the room. The smell gave me migraines as well as made my sinuses hurt. We returned the bed and ordered one of from Walmart that has been much better.