Best 40 Degree Nylon Sleeping Bags


Our review process

We have gathered, researched, and analyzed information on plenty of different types of sleeping bags in order to show you our top rated sleeping bags on the market. We then further sub-categorized them and looked more specifically at 3 different 40 degree nylon sleeping bags. In our research, we took into consideration a large variety of different key features among the 28,000 different data parameters and combined it with customer reviews to inform you of the top 40 degree nylon sleeping bags available on the market. But don't just take our word for it, check out some of the pros and cons of some of the main specs.

We've reviewed 40 degree nylon sleeping bags and wanted to share some information with you. These sleeping bags should keep you comfortable down to 40°F. They open completely, so they are easy to unzip at the top if you become overheated. 40 degree sleeping bags are generally cheaper than sub-zero degree bags, making them ideal if you're shopping on a budget. They are great for warm weather trips, so they help vent heat, keeping you cool if a hot front comes through. These sleeping bags are typically lighter, so they might not provide the highest degree of insulation, but they make up for it in weight.

Nylon sleeping bags are extremely durable, providing a consistent level of warmth for many years. They are very soft, ensuring comfort and rest, so you'll sleep happier than in your own bed. They are designed to be lightweight, so they are ideal for long-distance backpacking trips or other adventures where minimal weight and volume are a must. Nylon sleeping bags dry quickly, so when facing wet conditions, moisture will not soak the fabric.

Our Top Ranking Sleeping Bags:
Product NameBrandShapeSize
Best Overall Score
1
An image of Sea to Summit Ember I 073R-Parent Men's 40 Degree Nylon Sleeping Bag
Sea to Summit Ember I 073R-Parent Men's 40 Degree Nylon Sleeping Bag
Sea to Summit
barrel
single
Runner Up
2
An image of Alps Mountaineering Cinch 4701442 40 Degree Nylon Sleeping Bag
Alps Mountaineering Cinch 4701442 40 Degree Nylon Sleeping Bag
Alps Mountaineering
rectangle
single
3
An image of Marmot Axiom 40 Degree Nylon Sleeping Bag
Marmot Axiom 40 Degree Nylon Sleeping Bag
Marmot
mummy
single
Our Top Ranking Sleeping Bags
Customer Rating
Brand
Sea to Summit
Shape
barrel
Size
single
Customer Rating
Brand
Alps Mountaineering
Shape
rectangle
Size
single
Customer Rating
Brand
Marmot
Shape
mummy
Size
single
Best Overall Score
An image of Sea to Summit Ember I 073R-Parent Men's 40 Degree Nylon Sleeping Bag

With the Sea to Summit Ember I Men's 40 Degree Nylon Barrel Sleeping Bag, you can experience a great night's sleep while on your weekend away. This sleeping bag has a barrel shape, which is tapered from top to bottom to increase heat efficiency and save weight. It has a nylon ripstop exterior, so it resists wear and tear, and a nylon lining, which is light and soft on your skin and will remain at a comfortable temperature. This sleeping bag has a 40°F temperature rating, which is ideal for warm weather nights.

This sleeping bag features a compressible design, giving you enough extra space to take along your other essentials. It is lightweight and is suitable for hiking, so it is compact and easy to fit in your pack, making it comfortable to carry no matter the distance. This sleeping bag is easy to pack, making it easy to roll up and fit in your bag. It features a laundry bag and has a compression bag, which will make packing up your bag hassle-free.

    Pros
    • Features a compressible design
    • Easy to pack sleeping bags roll up compactly
    • Lightweight build
    Cons
    • Nylon can fade easily
    • Barrel shaped sleeping bags can be hard to fit into a backpack
Runner Up
An image of Alps Mountaineering Cinch 4701442 40 Degree Nylon Sleeping Bag

Trying to find a great camping sleeping bag? You'll want to know all about the Alps Mountaineering Cinch 40 Degree Nylon Rectangular Sleeping Bag. This Alps Mountaineering sleeping bag has a rectangular shape, which is perfect for those who like a bit of extra room. With a hammock design, it surrounds the entire hammock, keeping you warm and comfortable. It features a nylon lining and is made with a nylon ripstop exterior, so it resists wear and tear. It features Techloft Micro-Insulation, which uses tiny, silicone-coated, micro-denier fibers that increase insulation, comfort, and compactness. This sleeping bag can withstand 40°F temperatures, keeping you warm on colder summer nights. It is suitable for camping and is lightweight, making long days out on the trail easier to tackle. This sleeping bag has a compressible design and is made to be compact, so you can travel comfortably without bulk. It comes with a stuff sack, designed for easily fitting your sleeping bag into your backpack along with the rest of your gear.

    Pros
    • Made to be compact, getting rid of the bulk
    • Compresses easily
    • Stuff sack provides a spot to store loose items
    Cons
    • Nylon can fade easily
    • Rectangular shape is bulkier than other shapes
    • Camping sleeping bags are not suitable for hiking
Additional Picks
An image of Marmot Axiom 40 Degree Nylon Sleeping Bag

With a high user rating, the Marmot Axiom 40 Degree Nylon Mummy Sleeping Bag could be just what you need for your next outdoor adventure. This sleeping bag features a nylon lining, which will feel light and soft on your skin and will remain at a comfortable temperature. Featuring a mummy shape, it is made with maximum warmth-to-weight ratio, since it is cut closely so there isn't excess fabric, cutting down on the weight and making it easier to carry on your back. It is lightweight, so it won't be a burden to carry. This Marmot sleeping bag has a zipper guard, which prevents snagging by protecting the zipper with extra material on either side. It has a 40°F temperature rating, which is great for warm weather nights. With a mummy style, its hood will keep your head and neck very warm, since the cut leaves only your mouth and nose exposed. This sleeping bag comes with a stuff sack, which will keep you organized.

    Pros
    • Zipper guard prevents the material from tearing
    • Mummy-style hood provides extra comfort by the head
    • Stuff sack stores sleeping bags compactly
    Cons
    • Nylon will pill with extended use
    • Mummy shape is very fitted with no extra room to move
    • Stuff sack can ruin the sleeping bag's filling if used for too long
Additional Points to Keep in Mind When Deciding On Your 40 Degree Nylon Sleeping Bag:
The Best Shape for Your 40 Degree Nylon Sleeping Bag
Barrel Sleeping Bags

Trying to pick the ideal barrel sleeping bag for your next outdoor adventure? We can help you make an informed choice by giving you the pros and cons. Barrel sleeping bags have a spacious design, so they are ideal for people who feel too claustrophobic by the tight mummy shape. They accommodate varying sleeping positions, so if you move around a lot at night, you'll have the space and freedom to sleep in any position you choose. These sleeping bags are cut a bit closer than rectangular bags, providing better thermal efficiency than more spacious designs. Think you know which shape is right for you? Then why not start by looking at this exciting option.

Rectangular Sleeping Bags

Trying to pick the perfect rectangle sleeping bag for you? We will help you decide by providing you with the information that you need. Rectangular sleeping bags have a super spacious design, allowing you to stretch out with a generous amount of space. They accommodate varying sleeping positions, giving you plenty of room to get comfortable, regardless of your sleeping position. With double zippers, they are perfect for sleeping two as you can attach two sleeping bags to each other. One downside is that they are less ideal for cold weather, creating extra space inside which can weaken the bag's ability to keep you warm. Moreover, these sleeping bags are quite heavy, so they aren't convenient for when weight is a concern. Decided on which shape is perfect for you? Then check out this fantastic option.

Mummy Sleeping Bags

Deciding on the most suitable mummy sleeping bag for you? We can help you choose by giving you some important facts. Mummy sleeping bags weigh less than rectangular bags, so you won't have to sacrifice some warmth for weight. Something to keep in mind is that they provide less space to move around, making them uncomfortable for sleepers who toss and turn. A benefit is that they are good for cold weather, so they are designed to hold in warmth and keep out drafts. Think you know which shape is perfect for you? Then have a look at this great choice.