T-H-I-C-C! That's the best way to describe these pillows.

I bought the pillows to fill two shams, and to use when guests come to my house. After seeing how comfy these are, I actually considered using them when I sleep nightly vs. just using them as sham stuffers.

Each pillow arrives with extra filling. I chose to use the extra filling in both pillows because why not? One of the pillows expanded extremely well while the other had a little dip in the middle. I tried fluffing it on my own, tugging at the filling, and tossing the pillow in the dryer but unfortunately, I think that's just the way this one is going to stay. It's more annoying than anything else (just knowing that dip in the middle is there). The pillow still feels just as comfortable as the other one though.

I've attached photos of these memory foam pillows next to my old Serta ones. Admittedly, the Serta pillows have flattened over the years. I don't remember them ever being as thick as these memory foam ones though.

The pillows are both very heavy too, which is partially why I returned them. I'm just used to more lightweight pillows, not pillows that make me feel like I'm lifting weights whenever I move them around. This experience showed me that I actually don't prefer memory foam pillows and instead plush ones are better for me.

Other factors that led to me returning these pillows:
-A warning I saw in a previous review about harmful chemicals in them
-The pillows have a slight odor but it's nothing that'll make you feel dirty or anything
-Previous reviews also said these shouldn't be washed in the washer because they take forever to dry and the foam expands; I like washing and drying my pillows at home and don't want to have to deal with that

Overall, these are thick, heavy, and may be right for you. If you're used to more lightweight, plush pillows that are easy to toss in the washer and dryer, these probably won't work for you.

I had to redo my review to 5 stars. I bought these because they were adjustable 6 months ago. I took all the extra fill that came with them and shoved them in the pillows because I like firm. They were way to firm but I kept thinking they would smash down like all other pillows,...they did not.

Fast forward 6 months they still are way to firm and I forgot they were adjustable. That is easy to do because the zipper is very tiny and hidden. I seemed to recall they were adjustable in month 5 and briefly looked for the zippers but didn't find the zipper!!!

So I went back to my goose down pillows that these Enerplex pillows replaced. Then last week my wife pointed out to me that I wasn't using the new pillows anymore. I told her after 6 months of uncomfortable kinked necks I'm done with them. She reminded me they were adjustable. I told her I thought so too but theres no zipper (completely forgetting I used the zipper to fill them when I bought them 6 months ago). She re-found the zipper. I'm such an idiot! So I pulled 25% of the fill out, redistributed what was left and these Enerplex pillows went from horribly firm and tall to the most comfortable pillows I have ever used. No kidding! We had enough stuffing left over to stuff inside some cheaper pillows we were going to throw away and now those cheap pillows are super comfortable.

Don't be stupid and waste 6 months of your life with uncomfortable sleep people, DON'T FORGET TO ADJUST THE PILLOW FILL AMOUNT!!!!!!!!!!!!!!!!!

I think if I had not placed the extra fill in originally I would not have had this issue btw. DOH!

This pillow is amazing! Any other pillows I've purchased were too soft, too hard, or got lumpy after a while. Because you can add (yes...they provide extra filling!) or remove the shredded memory foam filling, you can adjust to your liking. I ended up taking about a third of it out as the pillow was too high for me. I ordered another as a gift!

These pillow work for me .. they were my 3 pair of pillows I tried and I slept good.. very fluffy and didn't Go hard after a couple of nights .. i just flip it over of I been in one spot to long due to me bot tossing and turning all night.

Have been searching for a pillow for side sleeping that is firm and high enough so that I don't have to sneak my hand or arm under the pillow to align my neck in a neutral position. These pillows fit the bill! They're quite heavy; you could really pack a wallop in a pillow fight. They arrived flat, rolled, and dense; loosened up adequately with a spin in the dryer and some hard shaking. Every morning and night I'm giving them some additional hard shakes to work out the last little lumps. Great for my side sleeping habit, haven't used the additional foam yet.