SertaPedic Won't Go Flat King Pillow, By Serta

I like this pillow very much because it's a doesn't go flat pillow. It is firm. It helps with my breathing. It's a sleeping on side pillow. iI would recommend to anybody that has sleep apnea.

I have 6 herniated discs and SEVERE spiral stenosis in my neck. I have been through countless pillows, none of which were comfortable. This pillow is a MUST HAVE!!! Perfect support. Never need to readjust it throughout the night. It consistently holds its shape. VERY IMPRESSED! Highly recommend! I purchased the King sized one.

I'm giving it 4 stars only because I think the real test is time. It feels great right out of the package, fluffs up nicely, and has been really comfortable to sleep on. I'm just not ready to declare it “won't go flat” after a week. 😂 If it's still this supportive a few months from now, I'll be impressed.

For the price, you really can't go wrong with this pillow. That said, I don’t understand how they can claim it “doesn’t go flat” — that part feels like false advertising. I'm honestly surprised they haven’t been called out for it. In my experience, every 4 to 6 months I have to replace these because they go flat. You can toss them in the dryer to fluff them up, and that helps temporarily, but by the next day, they’re usually flat again. I’ve owned $80 pillows and I’ve bought cheap ones like this, and truthfully, it doesn’t matter — none of them hold up past 10 months. So at this point, I’d rather spend just a few bucks on something like this. It’s surprisingly comfortable and holds up for several months, which makes it worth it in my book. Bottom line: I’ve tried them all — high-end, mid-range, and budget — and this inexpensive pillow honestly holds its own. In the long run, going cheap has proven to be the smarter move, because even the pricey ones don’t last as long as you’d expect.

So, honest opinion; it was fine for about 4 days then it went flat. I guess technically it's not fully flat since there's a 2in piece of foam in the middle surrounded by cheap fluff/fill. I have to prop up the sides with other pillows to make sure my neck is supported. LSS it's not the WORST I've gotten but it's definitely not the best

It was great in the beginning. I loved it and thought I’d found the one! But here I am, only five months later, and this sucker is as flat as a pancake. So disappointed.

It says wont go flat. What about lumps. Had this pillow for 2 months and already lost it's shape and is lumpy. Also smells like moth balls. Very uncomfortable. Don't buy it, I won't buy anything from walmart ever again. Bought a toaster that only toasts one side of the bread, a toaster oven that I have to play around with the door for it to close tight, an iron that doesn't spray, a winter jacket that's missing snaps, , humane mouse traps where the trap doors wouldn't close and the mice went in, ate the bait and left and I won't even begin to tell you what they did to my car when I brought it in for new tires.Walmart use to be a good place to shop but lately but lately they're going down hill with their merchandise. I do all my shopping on Amazon now

I’m quite disappointed in these pillows. Don’t be misled by never flat bc there fluffy at first moment but wake in morning and no difference in the quality of my last pillows that were actually better that I threw out when I replaced with these. Next, time I want a cheap pillow nothing special I’ll pick up cheaper ones while in Walmart.

Today is August 17, 2025 and I bought this pillow on July 17, 2025. It's almost completely flat already. Considering it's a won't go flat pillow, I'm highly disappointed. My husband bought a tempurpedic pillow months ago and it's still as plush as when he got it, so I guess I'll be buying one of those.

the pillows go flat. used both over the couple months. terrible they say dont go flat. but they did. they are half the thickness now. so i consider that went flat....wished i could get a refund....the picture onlys shows after cause i didnt think of taking but the pillows used to be higher n thicker