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Sleeping Bags +40º Sleeping Bags

More Info About Wiggy's Sleeping Bags & the FTRSS (Click to expand / collapse)

The Wiggy's Guarantee

Learn More Our Guarantee is for a lifetime of use. If a seam opens, the zipper breaks, or the Lamilite insulation deteriorates (such as losing its loft, separating, or clumping), Wiggy’s will repair or replace your bag at no charge to you.

What is the FTRSS?

The FTRSS allows you the option to zip an Overbag to a Core bag to achieve a lower temperature rating. In this way you can comfortably sleep in temperatures under 0° F. When combined with an overbag in the FTRSS, each core bag can be used at a 40° F lower temperature. When viewing a Core bag, you will see an option to 'Add FTRSS Overbag' when configuring your bag for checkout. If you check this box, we'll automatically add an appropriately sized overbag of the same type to your order. If you would like a different overbag, simply add the core bag without the FTRSS and pick your overbag separately.

*All of our sleeping bags are temperature rated on a ground pad and in a shelter. Cots and air mattresses do not apply as they will allow air flow under you while you sleep. So get on the ground in your Wiggy bag and warm up!*

Advice? Are you looking for a great 4-season sleeping bag that can be used for most of the lower 48 States? The Super Light FTRSS is our most famous and purchased bag both by our Armed Forces and civilian markets.

Why Lamilite Insulation?

Learn More The difference that truly sets the Wiggy's products apart from the rest is its insulation! We use only Lamilite, which possesses an extraordinary quality that helps contain the flow of heat that your own body generates.

Ordering the Proper Size Sleeping Bag

This applies to Mummy style sleeping bags as well as the Nautilus & Desert model bags.

The Nautilus and Desert bags are +40° bags. The Desert bag is for people who are 5 feet 9 inches or smaller and weigh 150 pounds or less. The Nautilus bag is for people larger than who would use a Desert bag.

The Overbag, Ultra Light, Super light and Ultima Thule bags come in four standard sizes. They are as follows.

  • Regular length/regular width will fit 5 feet 9 inches and a weight of 150 pounds. The bag size is 80 inches long and 31 inches wide.
  • Regular length/wide bag will fit a person 5 feet 9 inches and over 150 pounds, up to about 235 pounds. The bag length is 80 inches and the width is 34 inches.
  • Long length/regular width will fit a person who is 6 feet 5 inches and no more than 170 pounds. The length is 90 inches and the width is 31 inches. ( it has been our experience that tall people prefer the long and wide bag)
  • Long length/wide bag will fit a person 6 foot 5 inches and 260 pounds. The length is 90 inches and the wide is 34 inches.

As a rule when ordering the Ultima Thule, I recommend the wider size since there is double the insulation on the top half of the bag which does reduce the interior of the bag slightly. Also note: the Antarctic bag is made in both lengths, but the wide width only since there is double insulation top and bottom.

Our Zippers

The last, but by no means the least, important feature of our sleeping bag is the zipper. We use a #10 YKK molded tooth zipper. If your zipper fails to work when you are out in the field, it is irrelevant how good the rest of your sleeping bag is. I have been using the YKK #10 tooth zipper for 20 years, and I have yet to have a bag returned due to zipper failure.

Additional Information

General Care Info Our Fabrics

  • 40º Sleeping Bag
    40º Sleeping Bag
    $95.00 $80.00
    Available while supplies last! I was able to buy a lightweight rip stop nylon recently at a very enviable price. I had in stock some of the 5 ounce Lamilite, so I have quilted the nylon to both sides of the Lamilite in an 8...

  • Nautilus FTRSS Overbag (With Hood) › Rectangular Sleeping Bag
    Nautilus FTRSS Overbag (With Hood) › Rectangular Sleeping Bag
    $235.00 $192.00
    The Nautilus with Hood Overbag is a summer weight sleeping bag by itself. It is designed to be used as an overbag in the FTRSS system with any of the Hunter with Hood (rectangular) style core bags. When combined, the...

  • Nautilus Sleeping Bag
    Nautilus Sleeping Bag
    $215.00 $175.00
    In 1970 I purchased a sail boat and inherited a cotton shell and cotton-lined sleeping bag. I decided to make a sleeping bag more suited for use on a boat; the Nautilus was the end result. Lightweight at 3 pounds, the bag...

  • Desert Sleeping Bag
    Desert Sleeping Bag
    $198.00 $162.00
    I was working with a Marine Corps major in 1989 till 1992 when he was reassigned. He personally used my bags as he was a mountaineer. When the gulf war was immanent he asked if I could make a bag that would fit a particular...

  • Summer Weight › Hammock Sleeping Bag (Center Zip)
    Summer Weight › Hammock Sleeping Bag (Center Zip)
    $270.00 $220.00
    This 40° rated summer weight bag is a modified version of the Freedom Shelter sleeping bag. The foot end of the bag is open so the sleeping bag will fit around the hammock and when you pull the draw cord tight the...

  • Summer Weight › Freedom Shelter Center-Zip Sleeping Bag
    Summer Weight › Freedom Shelter Center-Zip Sleeping Bag
    $270.00 $220.00
    This 40° rated Super Light bag can be opened completely and used as a comforter. To become a sleeping bag, the foot end is closed with a shock cord. The hood functions like any hood. It can also be worn as an...

Our Locations  +  Contact

Corporate Office & Factory

To place an order, please contact our corporate office & factory at:

Wiggy’s Inc.
PO Box 2124
Grand Junction, CO 81502
+1 (866) 411-6465 f:  (970) 241•5921 e:  

Retail Stores


2482 Industrial Blvd  •  Grand Junction, CO
(970) 241-6465


8225 Old Seward Hwy, Ste A  •  Anchorage, AK
(907) 336-1330

When it comes to extreme cold weather gear, Wiggy's has you covered.

Check out all our products from sleeping bags & shelters to footwear & clothing. Our uniquely developed continuous filament fiber called Lamilite insulation is what sets Wiggy brand insulated products apart. What is Lamilite and why does it perform better than all other forms of insulation? Click here to keep reading & find out more »

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