New 2026 Gear Arriving Soon! Learn More

Person in red hat laying in a purple sleeping bag with their dog inside a yellow tent on a rocky mountain scene

Core Sheet

Regular price $99.00

Fill
Size
Color: Forest/Green
Size Guide

Return & Exchange Policy

You may return items for up to 14 days after delivery for a full refund, less the original shipping fee. Returned items must be unused, with tags attached, and in the same new condition in which you received them. View our full return policy here.

International Duties & Taxes

Packages will be subject to import/duty fees upon arrival. International customers are responsible for these fees. See more details.

Description

The Zenbivy Core Sheet features a our legendary soft 50D Pongee lining for maximum comfort at camp. Pair it with the Core Quilt to block all drafts, eliminate all constriction, and keep your pillow securely in place.

 

Product Specs

A table comparing the facets of 1 products
Weight
Weight

Uninsulated

  • 25": 7.0 oz (198 g)
  • 30": 8.0 oz (226 g)

Synthetic

  • 25": 14.0 oz (396 g)
  • 30": 15.0 oz (425 g)

Down

  • 25": 11.0 oz (311 g)
  • 30": 12.0 oz (340 g)
Limit / Comfort Rating
Limit / Comfort Rating

Uninsulated: N/A

Synthetic: 30°F (-1°C) / 40°F (4°C)

Down: 25°F (-4°C) / 35°F (2°C)

Sheet Sizing
Sheet Sizing

25": Fits mattresses up to 26” x 78” x 3.5"+ (66 x 198 x 9+ cm)

30": Fits mattresses up to 31" x 80" x 3.5"+ (79 x 203 x 9+ cm)

Fills
Fills

Uninsulated: N/A

Synthetic: UTF New2 polyester batting (120gsm X 2 layers)

650FP Duck Down (80/20 grey duck down), no water-resistant treatment (additive-free)

Fill Weight
Fill Weight

Core Sheet Down

  • 25": 66 g
  • 30": 74.5 g
Fabrics
Fabrics

Liner: 50D Polyester Pongee, coating-free, cire & non-cire, DWR-free, 62 gsm

Shell: 20D Nylon Taffeta, coating-free, cire & non-cire, C0 DWR (PFAS-free), 36 gsm

Best Used For
Best Used For
All-around
Compatible With
Compatible With

All clip quilts regardless of temperature rating, size, color, or style/year

Includes
Includes

Core Sheet only

Looking for the complete Core Bed?

Pair a Core Sheet with a Core Quilt to create a complete, draft-free Core Bed.

25" Sheets Fit Narrower Mattresses

Using a 20" mattress? Don't worry—the 25" sheet works on it too! Simply cinch the strap and the drawstring at the bottom.