These are cotton, and synthetic blend now. I've purchased the sheets for over 12 years. I got one set not realizing they've changed. They pill up, and we literally wore a huge hole through them in a couple months. The sheets totally shredded. I went back to sams to look at the sheets again, and the are pilled up on the outside from people touching them..really cruddy quality.

I have been buying these sheets for a very long time. I haven't bought any lately because I buy 4 at a time. I have had these for ever because they last a long time. The reviews lately scared me because they say they stink and material is cheap. However I was very happy to see this wasn't true. The sheets have a beautiful sheen to them and look very expensive. They feel so soft and do not wrinkle. They do have different material on the ends but they look good and you don't lay on that part. I love the deep pockets and the thick elastic I bought 6 sets and love them. Also they come with 4 pillow cases and they are longer than the normal ones. I love that because my pillows are queen size.

I noticed some comments about an unpleasant smell when opening these sheets, so I decided to test them myself. Yes, there was a faint smell when I first opened the packaging, but after washing them one time in normal detergent, the smell completely disappeared, and I love the fit and feel of these sheets.

These are terrible! The fitted sheet is weird! It is made with one rectangular piece and then seams around each edge attaching the fitted part. If you have texture issues these seams will drive you nuts. The fitted sheet also is too big and gets all loose in the middle after just a couple nights, and we have had them about 3 weeks and the fabric is already peeling up in places. I would return them if i had kept the packaging!

I bought these and threw them in the washer and dryer. And the pillowcase was missing sewing on the side seam. So there's a hole in one. I'm glad that there are 4 pillowcases. They are for deep mattresses, they don't adjust well for regular depth, the are quite saggy.

I ordered these sheets, and on initial evaluation they look and feel great. HOWEVER, they arrived smelling like very strong dog poop or a dead animal for some reason and stunk up my whole house. It look washing them twice on heavy duty cycles to get the smell out of them and I think it is still lingering in my living room where I opened the package. Very frustrating. I was gagging just trying to get the cardboard pieces out of them before putting them in the washer.

I am so happy with my purchase of the Sam's Club 500TC Performance Sheet Set! The sheets are incredibly soft, smooth, and comfortable. They feel luxurious, but without the high price tag. After washing, they stay soft and don’t lose their shape or color.

These were great sheets, but they change the fitted sheet. It now has this satin panel around the edge of the mattress. I think it was added to fit a deep mattress better. Well, it fits too well. Now the satin edge rolls up to the top of the mattress, and I end up laying on it. I feel the two different fabrics under me, and I don't like it. It also does not stay on the mattress as well either. The other sheet are the same as before and are great, but this does not make up for the poorly designed fitted sheet to make me get these sheets again.

Sides of the white fitted sheet are a different color and feel plastic-like. Horrible. Do not buy!

Top part of fitted sheet is fine. Sides of sheet are pilling up a lot and easily “ scar” up.