Big Meadows 40°F Wide Summer Camping Quilt

The Big Meadows 40° is a wide camping quilt built for the side sleeper who wants to stay covered through the night — 850FP RDS-certified down and Ion 1.1 shell for summer camping trips, car camping weekends, and anyone who wakes up to a pile of sleeping bag on the floor.

The Big Meadows 40° uses a half-taper shape: 55 inches wide from the head end to the midpoint, tapering to 45 inches at the foot end. That extra width across the shoulders and torso is what keeps side sleepers covered when they shift positions — there's enough quilt to stay tucked around you rather than riding up. The narrower foot section reduces dead air and excess weight without sacrificing coverage where it matters. A snap-and-drawcord system at the head end forms shoulder pockets that seal out drafts. Three tabs along the sides provide additional attachment points.

850 Fill Power RDS-Certified Down, Ion 1.1 Shell

The Big Meadows 40° is filled with 850 Fill Power RDS-certified down. Fill power measures how many cubic inches of loft one ounce of down produces when fully expanded. At 850FP, this quilt delivers reliable warmth night after night and holds its loft through a full season of use. For backpackers who need to shave weight, the Big Meadows Ultralight 40° uses 1000FP down to reach 13 oz.

Every Big Meadows 40° ships with a 25% overstuff by weight. Down naturally migrates toward the ends of each baffle over time, leaving the middle of the baffle thinner and reducing effective insulation across the full length of the quilt. The extra fill ensures that even after downshifting has occurred, every section of every baffle retains enough loft to hold the 40°F rating. No additional overstuffing is needed or recommended. For nights that drop below 40°F, the Big Meadows 20° handles three-season temperatures down to 20°F with the same half-taper coverage.

The foot box is formed using a drawcord, cord-locks, and double-sided Kam Snaps. On cool nights, snap it closed and cinch the drawcord for a sealed foot pocket that keeps warm air in. On warm nights, leave it open and use the quilt as a blanket — no need to unpack a separate layer.

Stack It With Another Quilt for Colder Nights

The double-sided Kam Snaps do more than close the foot box. Any Big Meadows or Wearable quilt of the same length snaps to any other, so a Big Meadows 40° layers with a Big Meadows 20° or a Sierra Sniveller 20° into one system — and nothing stops you adding a third. Any temperature combination works, multiples of the same rating included. Quilts made from 2019 on have the snaps; before that we used Omni Tape, which doesn't stack. Every JRB quilt you own makes the next one warmer.

The shell is Ion 1.1 — a 1.1 oz taffeta nylon whose tight weave blocks wind and sheds water while remaining breathable, independently tested and certified downproof. Ion 1.1 is more durable than ultralight fabrics, which makes it well-suited for camping use where a quilt sees more handling, storage, and laundering over the course of a season. Every quilt ships in a storage bag that does not compress the down and allows airflow, keeping the fill healthy for long-term storage.

Named for the Trail

Big Meadows Campground draws families back year after year — the same meadow, the same deer at dusk, the ice cream from the Wayside that tastes better after a day on the trail. The campfire burns down, the kids fall asleep, and the night cools off faster than you expected at 3,500 feet. The Big Meadows 40° was made for exactly those nights.

Handmade in Pennsylvania by Jacks R Better — making quilts since 2004. In-stock quilts ship the same or next business day.

• Temperature rating: 40°F (4°C) comfort
• Fill: 850 Fill Power RDS-certified down
• Shell: Ion 1.1 (1.1 oz taffeta nylon), tight-weave wind and water resistance, independently tested and certified downproof
• Construction: Sew-through