Honestly these mattresses are hit or miss. A couple of years ago I got a queen size mattress of this exact kind and it was great. No sinking, perfect firmness, and a good price. My brother, on the other hand, got the same one... And his sank/sagged. So 50/50 there. Last year I decided to get the king size (due to the addition of pets)of the same bed because I loved my queen mattress. After it got delayed due to the pandemic I finally had the king size of this bed... Only for it to start sinking not even 2 months in... for both me and my average-sized girlfriend. It's still a decent bed, but after sleeping on the queen size for 2 years it never sank or sagged. Ultimately I'm a bit disappointed by the hit or miss nature of these beds. I paid $700 for mine, but I see now they want $850 for it. I recommend putting that $850 toward a bed with better quality consistency.

My husband and I both feel like we're "falling" at night!! The edges of the bed are sagging and we hold on during the night. Each morning we wake up with back pain. I wish I had done more reading on Sam's customer reviews, this seems to be a common occurence with Serta. However online reviews showed this bed to be great for back support. Total waste of money!! We bought the queen, I weigh 135, my husband weighs 165. We are not heavy people. It's just a horrible bed.

Great set of mattresses

I'm happy with my buy!!!

We bought two Serta Perfect Sleeper Castleview Mattress Sets- one Cal King and one Queen- The problem was the Cal King- After 2 weeks on the Cal King, I had back pain and my wife hip pain. 4 weeks later, I bought $150 support foam. Now, for the past month both my wife and I have back and hip pains. Our old mattress (20 years old) that we trashed was nicer. Hoping to return and get credit for this one.

Very Satisfied

In just a couple of months , the bed was indented more than 3 inches where I slept and I weight 140 pounds .

Purchased this for a guest room. Delivery was smooth, all set up for guests next month. All seems OK

I bought this on Black Friday special, took a few weeks, then when I got it it ended up way too tall, have not been able to sleep on it, so sad!!

Very disappointed! Didn't last! Deep dips in the mattress that started after the first year and now need a new mattress.