Episode 122 | Unconventional Sleep Systems
Episode Summary
In this episode of the Backpacking Light Podcast, we explore unconventional sleep systems—alternatives to traditional sleeping bags that emphasize modularity and minimalism. We break down their benefits, trade-offs, and real-world performance to help you decide what works best for your backcountry sleep strategy.
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together with Outdoor Vitals
Today’s episode of the Backpacking Light Podcast is sponsored by Outdoor Vitals, makers of the StormLoft Down Topquilt, featuring ExpeDry gold-treated water-resistant down. ExpeDry down absorbs less water and dries faster than traditional DWR-treated down, keeping you warmer in damp conditions. Available in multiple fill weights for temperature control.
Show Notes:
What’s New at Backpacking Light?
- Masterclass: Backpacking Quilts
- Podcast: Episode 120 | Using Quilts in Cold Temperatures
- Gear Guide: Ultralight Down Backpacking Quilts Gear Guide
- Newsletter: Public lands funding & policy transparency, Backpacking Light Email Newsletter, March 16, 2025
- Find information about all of our upcoming Member Q&A’s, Webinars, Live Courses, other live events, and more on our Events Calendar Page.
Contact your congressional representatives and tell them (1) that you oppose funding cuts to federal land management agencies in spite of increasing visitor participation and the need to maintain infrastructure, wildfire mitigation, and a positive visitor experience; and (2) that you oppose agency policies that prevent them from publicizing positive news about American’s affinity for public lands recreation and its economic impacts because transparency is critical for us to gauge our support (or opposition) for the key policies that impact the management of our public lands.
Featured Brands and Products
The Outdoor Vitals Stormloft down quilt is filled with 800 fp water-resistant down and uses a 10d ripstop nylon shell. An insulated draft collar, vertical edge baffles, and two pad straps help mitigate drafts. Available in multiple fill weights for temperature control.
Six Unconventional Sleep Systems
- Top Bags – a sleeping bag that eliminates insulation on the bottom, relying on a sleeping pad for warmth.
- Integrated Sheets – a sleep system where a sheet is built into the sleeping bag or attaches to a pad.
- Hoodless Sleeping Bags – a sleeping bag without a hood, relying on a separate hooded layer.
- Zipperless Sleeping Bags – sleeping bags that ditch the zipper in favor of overlapping baffles or a quilt-like entry.
- Convertible Sleeping Bags – a bag that transitions between a sleeping bag and a quilt.
- Quilts – A hoodless, bottomless sleep system that relies on a pad for insulation.
Links, Mentions, and Related Content
- Masterclass: Backpacking Quilts
- Gear Guide: Ultralight Down Backpacking Quilts Gear Guide
- Gear Review: Gryphon Gear Aeres 20 Quilt Review
Discussion
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Companion forum thread to: Podcast 122 | Unconventional Sleep Systems
In episode 122 the Backpacking Light podcast we’re going to learn about unconventional sleep systems—alternatives to traditional sleeping bags that emphasize modularity and minimalism.
Questions for our community:
(1) do you use an “unconventional” sleep system, and
(2) if you do, what type and why?
IMO at this point a person in the UL community using a quilt is a normie with a very ‘conventional’ sleep system.
I miss rectangular sleeping bags made with UL materials. They were the OG “quilts” when opened up, were more comfortable than a mummy when zipped as a bag, could be paired for couples, or layered for flexible temperature ranges.
UL rectangular bags solved all of the problems that the discussed “unconventional” sleep systems attempt to address, and more. Nothing sold today is as versatile. (Yes, a rectangular bag is heavier, but not much when built with a light shell.)
All of the modern rectangular bags I see are either summer weight and small (AegisMax E, 50F comfort) or heavy for car-camping (Coleman, et al).
The closest thing I have found is the large XL700 comforter by Cumulus. It lacks a zipper and is not one of their customizable offerings. Otherwise, it is a near miss.
I actually just bought a comforter from Cumulus (the L500).
It is wide enough that when using it in a single person tent (X-mid 1 pro), it bunches up around me, and there’s little if any draft issues. Personally I find the comfort of a comforter vastly superior to a sleeping bag, and while a zipper would improve or at least ease cold weather performance, I’m confident I can get it pretty low using just some shock cord.
Time will tell how low…
Other companies make comforters (Sea to Summit for instance), but I don’t think anyone has anything with the ultralight focus of the Cumulus comforters. A 695g comforter with 500g of down is pretty crazy.
Note that Cumulus does take custom orders on their comforters as well, but you have to arrange it by email. I got mine with hydrophobic down for a €50 premium.
Agree with George H. Quilts are now fairly common in the lightweight community.
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