Casper Flannel Sheets Review – The Best Warm and Cozy Sheets?

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Casper pioneered the bed-in-the-box industry, but their innovations don’t stop with mattresses! Their flannel sheet set isn’t just cozy and comfy – it’s made with high-quality materials too.

Eager to learn more? Check out our full Casper flannel sheets review. We’ll go over everything you’ll need to know, including sizing, care instructions, and construction.

Specs Details
Mattress Clarity Rating 4.0
Price $109 – $169
Material Flannel
Thread Count 248
Color Options Oatmilk, Indigo, Spice, Olive, White
Size Options Twin, Twin XL, Full, Queen, King, California King
Return Policy Free Returns within the first 30 days
Save Up To 50%
Casper Flannel Sheets
Casper Flannel Sheets
Casper Flannel Sheets

The Casper flannel sheets feel soft, warm, and cozy. Click the link below to save up to 50% on select colorways!

Casper Flannel Sheets Overview

Most of the time, we focus on sheets that help hot sleepers feel cool at night. But if you’re one of those people who wants to snuggle in a warm cocoon, the Casper flannel sheets might be the ones for you.

Before we dive into all of the fun details, take a moment to see whether these sheets will meet your needs.

Who Might Like The Casper Flannel Sheets

  • People who feel cold at night
  • Fans of colors! These sheets come in five different hues.
  • Folks who love cotton sheets

Who Might Not Like the Casper Flannel Sheets

  • Hot sleepers
  • Fans of soft and silky sheets
  • People who are on tight budgets

Casper Flannel Sheets Video Review

The best way to learn whether these sheets will work for you is to see them in action! Check out our video review for more information.


What Do the Casper Flannel Sheets Feel Like?

Even though these sheets are made from cotton, they don’t have that typical crisp feel. Flannel contains brushed cotton, and that’s what creates that soft and cozy texture. The Casper flannel sheets will keep you exceptionally warm, so they’re great for the cold winter months.

RELATED: Best Sheets of 2022

Casper Flannel Sheets Materials

The construction is fairly straightforward. The Casper Flannel sheet set contains 100% organic cotton in a satin weave. It has a thread count of 248, but don’t be deterred by this low number. Thread count is not always an indicator of quality. Wondering about the best thread count for sheets? Check out our guide on thread count!

Penguin the cat rests on the Casper flannel sheets

Casper Flannel Sheets Size Options and Price

We can’t forget to examine two of the most important elements: size options and pricing! Check out our handy chart below to learn more.

The information below reflects the pricing for the Casper sheet set without the duvet cover.

Size Price
Twin $109
Twin XL $109
Full $139
Queen $139
King $169
California King $169
Save Up To 50%
Casper Flannel Sheets
Casper Flannel Sheets
Casper Flannel Sheets

The Casper flannel sheets feel soft, warm, and cozy. Click the link below to save up to 50% on select colorways!

Need something that will keep you cool at night? Check out our list of the best cooling sheets.

What to Consider Before Buying

It’s equally important to know how sheets perform over time. Here are a few key factors to consider before buying.

Sleeping Hot or Cold

Flannel is known to trap body heat, but Casper’s unique blend is much more breathable. This is where that low thread count comes in — it allows more air to flow through the sheets. These sheets will still keep you feeling warm and cozy, but you shouldn’t feel stuffy and uncomfortable.

Casper Flannel Sheets - featured

Hot sleepers will want to steer clear. If you tend to overheat at night, you’ll need thinner sheets that promote even more airflow. Take a look at our Casper Hyperlite sheets review for another great option!

Care Instructions

It’s super easy to keep these sheets clean. Simply wash in cold water on a gentle cycle and tumble dry on low heat.
For the best results, use only non-chlorine bleach and promptly remove the sheets from the dryer.


Because they’re made entirely out of cotton, we don’t expect the Casper Flannel sheets to trigger an allergic reaction.

Company Policies

You don’t want to rush into purchasing anything! It’s always wise to read the company policies before clicking “add to cart.”

Set Includes

The Casper flannel sheet set comes with one flat sheet, one fitted sheet, two pillowcases, and one duvet cover. These items are also sold individually.

Sleep Trial

The Casper flannel sheet set comes with a 30-night sleep trial period.

Return Policy

If you’re not a fan of the Casper flannel sheets, you can return them for a full refund – as long as it’s during the sleep trial period.

Common Casper Complaints

These Casper sheets feel more breathable than other flannel sheets, but they still create a lot of warmth. Some people complained that these sheets made them too hot in the spring and summer.

How Do The Casper Flannel Sheets Compare To Other Sheets?

We get it. Shopping for sheets online can feel overwhelming. To clear up some confusion, we’ll compare the Casper flannel sheets to two other products: the Casper Hyperlite sheets and the Tuft & Needle sheets.

Casper Flannel vs Casper Hyperlite Sheets

Even though they’re made by the same company, these sheets are vastly different. The Casper Hyperlite sheets are made from Tencel Lyocell, a fabric made from eucalyptus pulp, which makes them feel especially breathable and cool. They’re lightweight and soft, making them great choices for spring and summer.

Casper Hyperlite fitted sheet

The Casper flannel sheets are still breathable, but they feel warm and cozy. People who get cold at night could possibly use these sheets year-round, but they are best suited for fall and winter.

As far as pricing goes, these two sheet sets cost exactly the same! Ultimately, it boils down to what you need from your sheets.

Who Should Get The Casper Flannel Sheets?

  • Cold sleepers
  • People who want especially cozy sheets

Who Should Get The Casper Hyperlite Sheets?

  • Hot sleepers
  • Those who prefer lightweight and cooling sheets

Read our Casper Hyperlite sheets review.

Casper Flannel vs Tuft & Needle Percale Sheets

Both of these sheets are made with cotton, but the similarities stop there. Because the Tuft & Needle sheets have a percale weave, they’re especially breathable. The Supima cotton makes them feel soft and smooth, but they’re still very crisp. The Tuft & Needle sheets are available in seven different colors, and they have a matte finish.

Tuft & Needle Sheets Overview

The Casper flannel sheets contain brushed cotton, which gives them their soft and cozy texture. Flannel sheets are great for bundling up in the cold months, but they can cause people to overheat during the summer.

The Tuft & Needle sheet set costs a little bit less than the Casper sheet set, but they’re still within the same price range.

Who Should Get The Casper Flannel Sheets?

  • People who want soft sheets
  • Fans of warm and cozy sheets

Who Should Get The Tuft & Needle Percale Sheets?

  • Fans of a crisp cotton feel
  • Those who want their sheets to sleep cool

Read our Tuft & Needle sheets review.

Casper Flannel Sheets Rating

How do these sheets stack up? Take a look at the overall rating!

Casper Flannel Sheets
4 Overall
The Casper flannel sheets feel super warm and cozy. They have a nice heft to them, but they're a bit more breathable than traditional flannel sheets.
Thread Count
Return Policy


If you want to learn more about flannel sheets, take a look at our FAQ section below.

What is a good weight for flannel sheets?

While it ultimately boils down to a personal preference, most experts think flannel sheets should weigh at least five ounces. Luckily, the Casper flannel sheets feel hefty and strong. We expect them to have a long lifespan.

What brand makes the softest flannel sheets?

Flannel is a soft material, so it’s not difficult to find something that’s warm and cozy. However, if you want something that’s both warm, soft, and breathable, you can’t go wrong with the Casper flannel sheets.

Why are flannel sheets so cozy?

Flannel sheets are made with brushed cotton, which gives them a soft and cozy texture. People love snuggling under flannel sheets in the wintertime because they’re so thick and warm.

Gravatar for Tony Klespis

Tony Klespis

Tony is a staff writer at Mattress Clarity where he analyzes sleep products and appears in review videos. He earned a B.A in English from Sam Houston State University and a M.A in Mass Communication from Texas State University.

When he isn’t writing about sleep products, Tony loves to unwind with a good book or can be found playing Pokemon Go outside with his friends, or cuddling with his cat, Penguin. He’s always down to try a new, local restaurant and try new foods.