Celebrating 14 YEARS of SAATVA with Special Discounts | Save up to $600 | Ends 7/22Celebrating 14 YEARS of SAATVA with Special Discounts | Save up to $600 | Ends 7/22 | More Info
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Heavyweight Down Alternative Comforter

An ultra-warm version of our comforter/duvet insert for your coziest sleep

45k Saatva Reviews
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Great for colder nights, our heavyweight comforter offers the same luxurious, breathable feel of the original, but with a heavier fill for extra warmth.

  • Cotton shell made of the finest quality long staple percale cotton
  • OEKO-TEX® Standard 100 certified free of harmful chemicals so it's better for you & the planet
  • Blend of cloud-like 3D down alternative fiber and naturally moisture-wicking, temperature-regulating lyocell fill
  • 100% hypoallergenic
  • Diamond quilting ensures the down alternative fill stays evenly distributed
  • Corner loops to attach inside a duvet cover (sold separately)
  • Machine wash cold with like colors, gentle cycle, no bleach, tumble dry low
  • For a medium-weight comforter that’s great for all seasons, check out our All-Year Down Alternative Comforter

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Celebrating 14 YEARS of SAATVA with Special Discounts | Save up to $600 | Ends 7/22Celebrating 14 YEARS of SAATVA with Special Discounts | Save up to $600 | Ends 7/22 | More Info

What makes our heavyweight down alternative comforter so special?


breathable percale cotton shell

Our cotton shell is made with 200-thread count percale weave that’s as breathable as it is durable.

healthier sleep

This product has been certified to guarantee that it’s free of harmful chemicals.

Breathable Sleep icon

keeps you warm without overheating

Our heavyweight comforter has a heavier fill and cotton fabric weight, making this our thickest, warmest comforter yet. It has the same breathable blend of recycled down alternative fibers and natural, renewable lyocell fill as our other comforters to keep it nice and breathable.


100% Hypoallergenic

Sensitive sleepers can rest easy with our comforters' naturally hypoallergenic materials. The addition of natural lyocell in the fill makes it superbly moisture-wicking and breathable.

Our warmest, coziest comforter yet

Our irresistibly plush & weighty 420 cotton shell is filled with thicker layers of our breathable, cloud-like down alternative & lyocell blend. It’s designed to keep you warm and comfy through the coldest nights.

Frequently asked questions

  • Also known as a “duvet”, a duvet insert is typically fluffier than traditional comforters and quilts because they are filled with down alternative fibers or some other lightweight fill. They’re designed to be used inside a duvet cover.

    Saatva comforters can be used alone, but we recommend using it like a duvet insert inside our organic duvet covers to keep it clean and protected in between washes.

  • The terms “comforter” and “duvet” (also known as “duvet insert”) are sometimes used interchangeably. Traditionally, a comforter is meant to be used on its own and doesn’t require a cover. It can either have a decorative print or a solid color.

    In contrast, a duvet (AKA duvet insert) is designed to be used inside a duvet cover which you can wash and switch out regularly. Duvets are also typically fluffier than traditional comforters and quilts because they are filled with down alternative or some other lightweight fill.

    Our Saatva All-Year Comforter is actually a hybrid of both. Like a comforter, it can be used on its own without a duvet because it’s super soft and machine washable. Unlike a traditional comforter, it has the cloud-like softness and lightweight breathability of a duvet.

    We recommend using the All-Year Comforter as a duvet insert inside our duvet covers to give you more versatility and ease when laundry day comes around.

  • Machine wash on its own in cold water on a gentle cycle. Do not bleach. Tumble dry low and remove promptly. Mild, organic detergents work best.

  • Duvet covers typically have fabric loops on each corner to tie and anchor the corners of the duvet insert to keep it from bunching.

    Follow these easy steps to insert your duvet insert into your duvet cover:

    1. Turn the duvet cover inside out and lay it flat on your mattress, with the opening at the foot of the bed.

    2. Lay the comforter/duvet insert on top of the duvet cover.

    3. Tie the ends of the duvet insert to the corresponding corner loops of the duvet cover.

    4. Starting at the head of the bed, roll both the duvet cover and comforter/duvet insert together like a burrito toward the foot of the bed.

    5. Once at the end, invert the duvet cover opening around the ends of both sides of the “burrito” you just rolled.

    6. Zip the duvet cover closed.

    7. Unroll the “burrito” back up toward the head of the bed and fluff as needed.

  • Our unique blend of airy 3D down alternative fibers and naturally breathable lyocell absorbs very little body heat while offering a high volume of airflow which allows you to sleep very cool.

    To make our comforter even cooler, we cover it with naturally breathable percale cotton.

  • Unlike traditional down comforters which can shed some smaller pieces of down filling through the fabric shell, down alternative comforters usually don’t have this issue.

    They’re also a more hypoallergenic option because they don’t trap allergens like dust mites and pollen like traditional down comforters can.

  • Lyocell is a semi-synthetic fiber that is a form of rayon composed primarily of cellulose derived from wood pulp. It is a naturally biodegradable fiber that is manufactured in an efficient, eco-friendly process, making it a sustainable alternative to synthetic fibers like polyester.

    The main benefits of lyocell are its superb breathability, moisture-wicking, and durability.

  • The short answer: breathability!

    According to the National Sleep Foundation, the sweet spot for thread count in cotton bedding is between 200 and 400. If you tend to sleep hot, a higher thread count may not be a great choice as it tends to trap body heat. Sticking to that sweet spot for thread count is a good way to ensure your cotton sheets won't feel too warm.

  • GSM stands for “grams per meter” and refers to the weight of a fabric. In general, the higher the fabric’s GSM, the thicker and warmer it feels.

    Below are the GSM weights of some of our bedding:

    • Lightweight Down Alternative Comforter: lightweight 220 GSM

    • All-Year Down Alternative Comforter: medium-weight 340 GSM

    • Heavyweight Down Alternative Comforter: heavyweight 420 GSM

    • Waffle Knit Blanket: medium-weight 320 GSM

    • Sweater Knit Blanket: heavyweight 460 GSM

  • If you tend to sleep cooler and need added warmth, a heavyweight comforter or duvet insert is the way to go. However, just because a comforter has a heavier fill, doesn’t mean you have to sacrifice breathability. Look for a comforter that has a natural cotton shell rather than a synthetic one. Go for one with fill material that’s warm yet breathable, light, and moisture-wicking, like down alternative and lyocell.

  • The OEKO-TEX® Standard 100 is the internationally accepted standard for certifying textiles and home furnishings. Products that carry the OEKO-TEX® Standard 100 seal have been tested to ensure they're free of toxic chemicals.

  • Bedding and bath products returned within 45 days of the delivery date will get a full refund to the original form of payment. There are no restocking or penalty fees for used products, but we do ask that you wash any used products before returning.

    To make a bedding or bath return, simply call 1-877-672-2882 or email info@saatvamattress.com. If you received our bedding as a gift, please call us for help with your return.

  • At this time we do not have an exchange policy for Saatva bedding and bath products. If you would like to exchange your merchandise, simply return your order and repurchase the item of your choice.

  • We offer a year-round $225 discount off orders of $1,000 or more to active military, veterans, first responders, government employees, nurses, teachers, senior citizens & students. To apply the discount, simply click on the "Discount for first responders & more" box at checkout. You will be prompted to register with ID.me to verify your status and receive the discount. Note that your cart will automatically apply the larger discount if there is a promotional sale on Saatva.com that is better than your ID.me discount.

    We also occasionally offer promotional sales for limited time periods on our products on Saatva.com and Saatva Viewing Rooms. To be one of the first to learn about our latest sales, sign up for our mailing list at our site footer or text BED to SAATVA (722882). You can unsubscribe at any time.

Don't just take our word for it

Saatva has earned an A+ rating from the Better Business Bureau and 96% of Saatva customers are satisfied with their purchase**.See for yourself why we have the highest customer review ratings in the mattress industry.

*From a recent Saatva customer satisfaction survey, which we conduct on a regular basis to ensure service, product, and overall quality standards.
**Based off Saatva return rates.

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