Six weeks ago, I ordered a Casper fitted sheet without measuring my mattress depth. That was mistake number one. My mattress is 12 inches thick, and the sheet's elastic barely grabbed the corners. It popped off twice during the first night. So I measured, re-ordered, and learned a few things about Casper bedding that aren't in the product photos.
Here's what I found, so you don't waste a return cycle.
Sizing: The 4-Inch Problem
Casper's fitted sheets come in standard sizes, but the sheet's pocket depth is the real spec. My original sheet had a 14-inch pocket. My mattress is 12 inches thick, plus a 2-inch topper, which put the total at 14 inches. Should've fit. But the sheet was snug to the point of fighting me. The corners seemed to slide off the topper's rounded edge.
After measuring again and checking the return policy, I swapped for the deep-pocket version. That one has a 16-inch pocket. It fits better, but the elastic still isn't tight enough for a restless sleeper like me. I wake up with the bottom corner pulled up. If your mattress is 14 inches or more, go deep pocket—no question. Check the depth before you click add to cart.
Another sizing note: Casper's fitted sheets tend to run a bit small in width. On my queen, the sides ride up a little, but the deep pocket helps. Don't assume standard queen means standard queen.
Material: The Synthetic Blend Debate
I bought the standard Casper sheet set first. It's a polyester blend—I think 60% poly, 40% cotton? Actually, the label says "brushed microfiber." It felt soft out of the package, but after two washes, it pilled in the center. Pilling looks bad and feels rough against skin. Not happy.
Then I tried the cotton percale set. That's a different story. It's crisp, breathes better, and holds up to washing so far (about four washes now). The percale is a bit pricier, but it's worth it if you're a hot sleeper. The microfiber trapped heat, and I woke up sweaty.
One downside: the percale set wrinkles. You have to iron or steam it if you care. I don't, so whatever. If you want zero-wrinkle, stick with the microfiber, but expect the pilling.
What I Wish I'd Known: Wash Before You Use
My biggest mistake? I didn't wash the sheets before the first sleep. The microfiber sheets had a chemical smell straight out of the bag. It faded after a wash, but the percale was fine out of the box. So wash everything first—your skin will thank you.
Also, the fitted sheet is the only thing I'd buy from Casper. The flat sheet is just a flat sheet, and the pillowcases are okay but nothing special. I ended up buying a cheaper set for the flat sheet and keeping the Casper fitted only. Save your cash.
The Bottom Line (Without the Hype)
Casper bedding is fine, but not magical. Get the deep-pocket fitted sheet if you have a thick mattress. Go with the cotton percale if you can. Wash before using. And don't buy the whole set unless you're into the look.
I still have the extra flat sheet in a drawer. Maybe I'll use it for a picnic someday.
If you're also shopping for a Casper mattress, read about Casper Original First Week: The Setup Mistake That Wasted My Sleep and Casper Select Mattress First Week Setup: The One Decision That Matters. The mattress is more important than the sheets.
For more on bedding that actually fits, check the Double Bedding Sets: Fit, Fabric, and Everything In Between and White Bedding Set Guide: Fit, Fabric & Styling.