This isn't justThis isn't just an alternative, it's a sleep upgrade.Sale ends in
Limited-time pricing, every size.
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Down Alternative Duvet Insert
by 
— a Slumber Cloud sister brand
$75.00$159.00
Limited-time sale price — you save $84 on this size
1
Free US shipping & 30-night trial
Overview
This isn't just an alternative, it's a sleep upgrade.
The Down Alternative Duvet Insert doesn't just fill the gap, it's rewriting the rules of comfort with premium materials and effortless care.
Features & Benefits
This isn't just
This isn't just an alternative, it's a sleep upgrade.
Relaxed, design
Relaxed, design-led comfort
Easy to layer
Easy to layer
Materials, Fabric Technology & Care
What it is made from
- 120gsm 100% soft touch polyester fabric - 12" x 12" box quilting - Corner loops to hold the duvet in place - Hypoallergenic down alternative fiberfill - 270 gsm All-season fill weight for year-round comfort - Machine washable
How the fabric works
This isn't just an alternative, it's a sleep upgrade.
How to care for it
Basic Care: Machine wash cold water on a gentle cycle with a mild detergent and with like colors only. Tumble dry low heat until fill is completely dry. Remove from the dryer immediately. To maintain even distribution of fill, re-fluff or shake throughout the dry cycle. Only use non-chlorine bleach when needed. Do not dry clean. Do not iron.
Pro Tip: Do not iron, bleach or dry clean your Down Alternative Duvet Insert.
Sizing & Dimensions
Twin / Twin XL - 68" x 90" Full / Queen - 90" x 90" King - 104" x 90"
Shipping, Returns & Price Match
Free US ground shipping — orders typically ship within 24 business hours from Denver, Colorado. Try it for 30 nights; if you don't love it, return it for a full refund. If it goes on a deeper sale within 30 days, we'll refund the difference.
Made for easier living
Why you'll love it
This isn't justThis isn't just an alternative, it's a sleep upgrade.Relaxed, designRelaxed, design-led comfortEasy to layerEasy to layer
Considered materials
Fewer layers. Better materials. An easier bed.
A design-led sister brand built around relaxed materials, intentional layers, and a more intuitive daily routine.
Materials
- 120gsm 100% soft touch polyester fabric - 12" x 12" box quilting - Corner loops to hold the duvet in place - Hypoallergenic down alternative fiberfill - 270 gsm All-season fill weight for year-round comfort - Machine washable
Technology & benefits
This isn't just an alternative, it's a sleep upgrade.
Care
Basic Care: Machine wash cold water on a gentle cycle with a mild detergent and with like colors only. Tumble dry low heat until fill is completely dry. Remove from the dryer immediately. To maintain even distribution of fill, re-fluff or shake throughout the dry cycle. Only use non-chlorine bleach when needed. Do not dry clean. Do not iron.
Pro Tip: Do not iron, bleach or dry clean your Down Alternative Duvet Insert.
The Avec difference
Breathable, effortless comfort — thoughtfully designed linen for cooler, calmer nights.
— Avec design studio
Naturally breathable
An airy linen-viscose weave that stays cool without any tech
Award-winning design
Recognized by sleep and home editors
Softer with every wash
Relaxed linen comfort that only gets better over time
Loved by sleepers
Real ratings from the Avec community
Good to know
Frequently asked questions
What is the fabric like?
A relaxed linen-viscose weave that is breathable and soft, and only gets more comfortable with every wash.
How should I care for it?
Machine wash with like colors and tumble dry low. Skip fabric softener to keep the fibers at their best.
What if it is not right for me?
Eligible products include free US returns and a 30 night risk-free trial, so you can wash it, sleep on it and put it to the test.
Real sleepers, real results
Customer reviews
+30k verified reviews, powered by Yotpo.