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Home / Duvets & Bedding / Down Alternative Duvet Insert - 37”x51"
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The natural comfort collection
Create a cozy bedtime with this 37-by-51-inch down alternative duvet insert. Soft fibers bring inviting warmth and gentle comfort to a carefully layered toddler bed.
USD · Listed price, before tax.
Free U.S. Shipping* Ships within 1–2 business days.*Excluding Alaska, Hawaii and Puerto Rico
Included with your Down Alternative Duvet Insert - 37”x51"
Thoughtful details for everyday comfort, with personal guidance whenever you need it.
Down alternative fibers bring an inviting, gently cushioned layer.
The 37-by-51-inch insert is designed for a carefully layered toddler bed.
Covered by the Lincove 5-year limited warranty for defects in materials and workmanship. Register your product.
Pairs well with100% Organic Wool Dryer BallsFrom $28.00Explore01 / A closer look
Create a cozy bedtime with this 37-by-51-inch down alternative duvet insert. Soft fibers bring inviting warmth and gentle comfort to a carefully layered toddler bed.

Customer video, shared with permission.
See it in use
See the loft, the finish and how it settles in a real bedroom. Use the player controls; sound is off until you choose it.
02 / Made for your everyday
Consider your room and how you sleep. If you run warm, a lighter layer may suit you better.
Preference guide, not a measured thermal rating or sleep guarantee.
| At a glance | Down Alternative Duvet Insert | 100% Canadian White Down Duvet Comforter | Down Alternative Duvet Comforter |
|---|---|---|---|
| Price | $178.00 | From $488.00 | From $198.00 |
| Fill power | — | 800 | — |
| Shell | 100% Cotton Sateen | 100% Cotton | 100% Cotton Sateen |
| Thread count | 400 | 600 | 400 |
| Rating | 4.9 (102) | 4.8 (299) | 4.9 (109) |
03 / Down to the detail
Look closer at the fill, the finish and the details that make this comforter yours.

What’s inside

The outer layer
100% Cotton Sateen shell.
04 / See it at home
Real customer videos, shared with permission. Tap a card to play.
05 / Customer perspectives
Every rating from verified customers, including the critical ones, so you can decide with confidence.
A considered pairing
Start with what is missing: a cover that fits, the right pillow feel, or an extra layer. Nothing is preselected.

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The useful details
Materials, size, care and the terms that matter.
Speak with our Sleep ConciergeOrders ship from New York within 1–2 business days, and free U.S. ground shipping usually takes 3–5 business days after that. You’ll receive a tracking number by email once it ships.
The current return policy allows eligible returns within 30 days of delivery, with clean, like-new items and original packaging. Approved bedding refunds carry a 10% processing fee, waived for approved exchanges. Read the complete policy.
Considered comfort. Every day.
Choose the option that suits your home.
Choose your comforterCustomer video, shared with permission.



