+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Mountain Equipment Helium 3.8 Warmzone Sleeping Mat

Mountain Equipment Helium 3.8 Warm Zone, M084 Moss, One Size, ME-003603-M084
Mountain Equipment Helium 3.8 Warm Zone, ME-01123 Deep Sea, One Size, Me-003604-ME-01123
Mountain Equipment Helium 3.8 Warm Zone, M084 Moss, One Size, ME-003603-M084
1 of 2 images
Mountain Equipment Helium 3.8 Warm Zone, M084 Moss, One Size, ME-003603-M084
Mountain Equipment Helium 3.8 Warm Zone, ME-01123 Deep Sea, One Size, Me-003604-ME-01123
2 of 2 images
Mountain Equipment Helium 3.8 Warm Zone, ME-01123 Deep Sea, One Size, Me-003604-ME-01123

Tap Tap to Zoom

Questions & Answers

Product Discontinued by Manufacturer

Mountain Equipment Helium 3.8 Warmzone Sleeping Mat has been discontinued by Mountain Equipment and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Camping Gear, Sleeping Bag Accessories, Sleeping Pads yourself to try and find the perfect replacement for you!

Product Info for Mountain Equipment Helium 3.8 Warmzone Sleeping Mat

Combining low weight and a small pack size with high levels of comfort and insulation, the Helium 3.8 is an ideal self-inflating mat for use year-round.image

Features of Mountain Equipment Helium 3.8 Warmzone Sleeping Mat

  • 38mm lightweight bilateral cored foam for low pack size and comfort
  • 75D Polyester top surface is lightweight and robust
  • 75D Polyester base with non-slip reinforced finish
  • Large push-in valve for efficient inflation and deflation
  • Supplied with lightweight stuff sack
  • Supplied with repair kit
  • Weight : 750g / 25oz

Package Contents:

  • Mountain Equipment Helium 3.8 Warm Zone

Outdoor Essentials

1–60 / 60
Previous
Newly Added
Star-Batt Plus Power Pack
Star-Batt Plus Power Pack
List: $1,699.00 (Save 12%)
$1,499.00
See all 2 models
Black Diamond Distance 1500 Headlamp, Octane, One Size, BD6206948001ALL1
Black Diamond Distance 1500 Headlamp, Octane, One Size, BD6206948001ALL1
$249.95
Best Rated
Olight Odin Mini 1250 Lumens LED Rechargeable Flashlight
Olight Odin Mini 1250 Lumens LED Rechargeable Flashlight
(49)
List: $167.94 (Save 17%)
$139.95
See all 2 models
Yeti V-Series Cooler, Stainless Steel, 11055020000
Yeti V-Series Cooler, Stainless Steel, 11055020000
(1)
$800.00
Free 2 Day Shipping
Spyderco Sage 5 Cobalt 3in Folding Knife
Spyderco Sage 5 Cobalt 3in Folding Knife
(1)
As Low As (Save 25%)
$171.00
See all 3 models
Star-Batt Solar Panel, Black, SBS-03
Star-Batt Solar Panel, Black, SBS-03
(1)
$599.00
Yeti Roadie 60 Quart Hard Cooler
Yeti Roadie 60 Quart Hard Cooler
(1)
List: $485.96 (Save Up to $38.50)
$475.00
See all 5 models
We Knife Co Ltd Merata Framelock Nebula WE22008BDS1
We Knife Co Ltd Merata Framelock Nebula WE22008BDS1
List: $739.95 (Save 15%)
$629.00
Blazin' Deal
Yeti Yeti Hopper Flip 18 Quart Soft Cooler
Yeti Yeti Hopper Flip 18 Quart Soft Cooler
As Low As (Save Up to 27%)
$219.49
See all 16 models
Snow Peak GigaPower Lantern, Auto, One Size, GL-100AR
Snow Peak GigaPower Lantern, Auto, One Size, GL-100AR
$86.95
Free 2 Day Shipping
Leatherman ARC 2.76in Multi-Tool
Leatherman ARC 2.76in Multi-Tool
(1)
$249.95
See all 1 models
Free 2 Day Shipping
Black Diamond Icon 700 Headlamp
Black Diamond Icon 700 Headlamp
As Low As (Save Up to $9.96)
$119.99
See all 2 models
Blazin' Deal
Browning Range Tool, Silver, 3220479
Browning Range Tool, Silver, 3220479
List: $35.49 (Save 52%)
$16.87
Free 2 Day Shipping
Snow Peak Round Titanium Flask, 150ml
Snow Peak Round Titanium Flask, 150ml
(1)
As Low As
$194.95
See all 2 models
On Sale
Dark Energy Poseidon XL Powerbank, PXL100BKHV
Dark Energy Poseidon XL Powerbank, PXL100BKHV
List: $249.99 (Save 18%)
$205.99
Blazin' Deal
Black Diamond Moji R+ Lantern
Black Diamond Moji R+ Lantern
As Low As
$45.49
See all 4 models
Free 2 Day Shipping
Snow Peak Titanium Kanpai Bottle, 350 ml, TW-180
Snow Peak Titanium Kanpai Bottle, 350 ml, TW-180
List: $184.95 (Save 19%)
$149.95
Mountain House Chili Mac with Beef, Can
Mountain House Chili Mac with Beef, Can
$14.99
See all 1 models
Carson MagniFlash 11x Magnifier Loupe, White CP-40
Carson MagniFlash 11x Magnifier Loupe, White CP-40
List: $53.00 (Save 32%)
$35.99
Blazin' Deal
Yeti Flask
Yeti Flask
As Low As (Save Up to 27%)
$42.49
See all 13 models
ReadyWise Emergency Freeze Dried Powdered Eggs, 144 Servings, RW05-516
ReadyWise Emergency Freeze Dried Powdered Eggs, 144 Servings, RW05-516
List: $209.99 (Save 10%)
$189.99
5% Coupon
Blue Force Gear NANO ES Version 2 Micro Trauma Kit Now!
Blue Force Gear NANO ES Version 2 Micro Trauma Kit Now!
List: $94.99 (Save Up to $1.94)
$94.95
See all 2 models
On Sale
Power Mountain 15 Can Soft Cooler, Gray, 80080
Power Mountain 15 Can Soft Cooler, Gray, 80080
List: $147.99 (Save 20%)
$117.99
Blue Force Gear Micro Trauma Professional Kit Medical Supplies, TKR-MTKN-PRO
Blue Force Gear Micro Trauma Professional Kit Medical Supplies, TKR-MTKN-PRO
List: $119.99 (Save 25%)
$89.99
MTN OPS Hydrate Drink Mix - Trail Pack
MTN OPS Hydrate Drink Mix - Trail Pack
As Low As (Save Up to 33%)
$1.99
See all 7 models
Nitecore EMR23 USB-C Rechargeable 2-in-1 Electronic Mosquito Repeller, Black, 6952506490080
Nitecore EMR23 USB-C Rechargeable 2-in-1 Electronic Mosquito Repeller, Black, 6952506490080
$75.95
Ben's 30 Spray Carded
Ben's 30 Spray Carded
As Low As
$5.99
See all 3 models
Outdoor Edge Cutlery Flip N' Zip Saw - 4.5in Blade, Orange FW-45
Outdoor Edge Cutlery Flip N' Zip Saw - 4.5in Blade, Orange FW-45
(2)
List: $27.99 (Save $2.50)
$25.49
Newly Added
MTN OPS Performance Protein Bar
MTN OPS Performance Protein Bar
$2.99
See all 3 models
Hawk Gazer FLG-9T LED Flashlight/Green Laser Combo, Black, Low Profile, LG-HG-FLG-9T
Hawk Gazer FLG-9T LED Flashlight/Green Laser Combo, Black, Low Profile, LG-HG-FLG-9T
(21)
List: $99.99 (Save 17%)
$82.99
Sea to Summit Ultra-Fine Mesh Headnet, Black, 142
Sea to Summit Ultra-Fine Mesh Headnet, Black, 142
$17.95
Carson Adventure Pak Binoculars, 5x30mm, Roof Prism, Matte Green, HU-401
Carson Adventure Pak Binoculars, 5x30mm, Roof Prism, Matte Green, HU-401
(2)
List: $40.00 (Save 15%)
$33.99
Star-Batt Mini Power Pack
Star-Batt Mini Power Pack
List: $1,099.00 (Save $100.00)
$999.00
See all 3 models
Nebo Davinci Flashlights
Nebo Davinci Flashlights
As Low As (Save Up to 27%)
$39.99
See all 6 models
Free 2 Day Shipping
Spyderco Salt Para 3 2.92in Folding Knife
Spyderco Salt Para 3 2.92in Folding Knife
(1)
As Low As (Save 25%)
$154.50
See all 3 models
Yeti Tundra 65 Quart Hard Cooler
Yeti Tundra 65 Quart Hard Cooler
List: $400.00 (Save Up to 10%)
$395.00
See all 5 models
Blazin' Deal
Yeti Yeti Hopper Flip 12 Quart Soft Cooler
Yeti Yeti Hopper Flip 12 Quart Soft Cooler
(1)
As Low As (Save Up to 30%)
$175.49
See all 18 models
Blazin' Deal
Leatherman Wave Plus
Leatherman Wave Plus
(6)
As Low As (Save Up to 18%)
$123.49
See all 3 models
On Sale
Black Diamond Storm 500-R Headlamp
Black Diamond Storm 500-R Headlamp
As Low As (Save Up to 19%)
$72.99
See all 2 models
Yeti Rambler 2.0 Jug
Yeti Rambler 2.0 Jug
As Low As (Save Up to 10%)
$117.00
See all 6 models
Snow Peak Mini Hozuki Lanterns
Snow Peak Mini Hozuki Lanterns
$49.95
See all 3 models
10% Coupon
MTN OPS Ignite Energy Drink - Scoop
MTN OPS Ignite Energy Drink - Scoop
List: $49.99 (Save Up to 23%)
$49.95
See all 7 models
Best Rated
SureFire PLR-C Stiletto Pro II Rechargeable Pocket Light, Multi-Output, 1500 Lumens, Dual 14mm High-Candela Reflectors, Black, PLR-C
SureFire PLR-C Stiletto Pro II Rechargeable Pocket Light, Multi-Output, 1500 Lumens, Dual 14mm High-Candela Reflectors, Black, PLR-C
(10)
List: $409.00
Add to Cart for Your
Special Price
MTN OPS Yeti Monster Pre-workout Powder Energy Drink, 30 Serving Tub
MTN OPS Yeti Monster Pre-workout Powder Energy Drink, 30 Serving Tub
List: $44.99
$44.95
See all 2 models
VISM Vertical Grip w/Strobe Flashlight & Red Laser - Gen2, 200 Lumens VAQVGFLRV2
VISM Vertical Grip w/Strobe Flashlight & Red Laser - Gen2, 200 Lumens VAQVGFLRV2
(6)
List: $133.99 (Save 19%)
$108.99
Carson MiniBrite 5x Magnifying Loupe Glass
Carson MiniBrite 5x Magnifying Loupe Glass
(1)
As Low As (Save Up to 35%)
$14.99
See all 2 models
Ben's InvisiNet Bug Jacket & Mitts
Ben's InvisiNet Bug Jacket & Mitts
$41.99
See all 2 models
Newly Added
MeatEater American Buffalo Jerky
MeatEater American Buffalo Jerky
$9.99
See all 2 models
Best Rated
Streamlight TLR-2G LED Rail-Mounted Tactical Light, CR123A, Green/White, 300 Lumens, Black, 69250
Streamlight TLR-2G LED Rail-Mounted Tactical Light, CR123A, Green/White, 300 Lumens, Black, 69250
(45)
List: $771.22 (Save 46%)
$419.49
UST Spork Stainless Steel Multi-Tool
UST Spork Stainless Steel Multi-Tool
List: $8.81 (Save Up to 52%)
$4.99
See all 2 models
Zippo Lighter and Knife Set, 1.44" x 2.25", 49391
Zippo Lighter and Knife Set, 1.44" x 2.25", 49391
List: $61.95 (Save 15%)
$52.66
LEM Products Jerky-Board And Knife, 616
LEM Products Jerky-Board And Knife, 616
$47.89
TOPEAK Mini P20 MultiTool, 60102582B
TOPEAK Mini P20 MultiTool, 60102582B
$59.95
Rothco Tactical Pen and Flashlight, 5423
Rothco Tactical Pen and Flashlight, 5423
List: $35.99 (Save 28%)
$25.99
Stansport Emergency Food Bars - 3600 Calories, Blue, 3.75"L x 2.5"W x 4.75"H, 366
Stansport Emergency Food Bars - 3600 Calories, Blue, 3.75"L x 2.5"W x 4.75"H, 366
(2)
List: $23.99 (Save 21%)
$18.99
Maglite 2 Cell Aa Mini Magliteled W/ho 459-SP2209H, Unit EA
Maglite 2 Cell Aa Mini Magliteled W/ho 459-SP2209H, Unit EA
List: $149.99 (Save 13%)
$129.99
EMI Starburst, Blue - 864
EMI Starburst, Blue - 864
$169.99
Tops Knives A.L.R.T. w/Light TKALRT-01
Tops Knives A.L.R.T. w/Light TKALRT-01
List: $119.95 (Save 25%)
$89.79
EMI Flashback Controller, Green/Red 3030
EMI Flashback Controller, Green/Red 3030
List: $76.75 (Save $2.76)
$73.99
Outdoor Edge Cutlery Grill-Beam Tongs Box, Black/Silver, GMT-10
Outdoor Edge Cutlery Grill-Beam Tongs Box, Black/Silver, GMT-10
$23.95
Next

Related Products to Mountain Equipment Helium 3.8 Warmzone Sleeping Mat

Image of Snow Peak Double BBQ Box Grill Snow Peak Double BBQ Box Grill (1) $356.95
Image of Black Diamond Mission Tent - 4 Person 2 models Black Diamond Mission Tent - 4 Person As Low As $1,499.00 Final Sale
Image of Snow Peak Land Lock Ivory, 4-Person 2 models Snow Peak Land Lock Ivory, 4-Person As Low As (Save Up to 31%) $1,100.49 Blazin' Deal
Image of Snow Peak Garden Bench Snow Peak Garden Bench $1,295.95
Image of Big Agnes Copper Spur UL2 Tent 2 models Big Agnes Copper Spur UL2 Tent $599.95 Free 2 Day Shipping
Image of Black Diamond Eldorado Tent 2 models Black Diamond Eldorado Tent As Low As $891.49 Blazin' Deal
Image of Therm-a-Rest NeoLoft Sleeping Pad 3 models Therm-a-Rest NeoLoft Sleeping Pad As Low As $249.95 Free 2 Day Shipping
Image of Therm-a-Rest NeoLoft Sleeping Pad 3 models Therm-a-Rest NeoLoft Sleeping Pad As Low As $249.95 Free 2 Day Shipping
Image of Therm-a-Rest NeoLoft Sleeping Pad 3 models Therm-a-Rest NeoLoft Sleeping Pad As Low As $249.95 Free 2 Day Shipping
Image of Big Agnes Bunk House 4 Tent Big Agnes Bunk House 4 Tent $649.95
Image of Big Agnes Rapide SL Insulated Sleeping Pad 9 models Big Agnes Rapide SL Insulated Sleeping Pad (2) As Low As (Save Up to 27%) $159.95 Blazin' Deal
Image of Big Agnes Rapide SL Insulated Sleeping Pad 9 models Big Agnes Rapide SL Insulated Sleeping Pad (2) As Low As (Save Up to 27%) $159.95 Blazin' Deal
Image of Big Agnes Rapide SL Insulated Sleeping Pad 9 models Big Agnes Rapide SL Insulated Sleeping Pad (2) As Low As (Save Up to 27%) $159.95 Blazin' Deal
Image of Snow Peak Racksotto Multi Starter Set Armrest Plus Snow Peak Racksotto Multi Starter Set Armrest Plus $969.95
Image of Marmot Limestone Tent - 6 Person 2 models Marmot Limestone Tent - 6 Person As Low As (Save Up to 45%) $331.00 Blazin' Deal
Image of Exped MegaMat Duo+ Exped MegaMat Duo+ $449.95
Image of Exped MegaMat Duo+ Exped MegaMat Duo+ $449.95
Image of Exped MegaMat Duo+ Exped MegaMat Duo+ $449.95
Image of Star-Batt Mini Power Pack 3 models Star-Batt Mini Power Pack List: $1,099.00 (Save $100.00) $999.00
Image of Big Agnes King Solomon 20 Sleeping Bag Big Agnes King Solomon 20 Sleeping Bag $499.95
Image of Big Agnes Copper Spur UL2 XL Tent 2 models Big Agnes Copper Spur UL2 XL Tent $649.95 Free 2 Day Shipping
Image of Big Agnes Tiger Wall UL3 Tent 2 models Big Agnes Tiger Wall UL3 Tent As Low As (Save Up to 27%) $420.49 Blazin' Deal
Image of Black Diamond Ahwahnee Tent 3 models Black Diamond Ahwahnee Tent As Low As (Save Up to 20%) $839.96 Final Sale
Image of Snow Peak Iron Grill Table Camp Kitchen Starter Set Snow Peak Iron Grill Table Camp Kitchen Starter Set (1) $599.95

Mountain Equipment Helium 3.8 Warmzone Sleeping Mat Unavailable & Discontinued Models

List of Unorderable Models

  • Mountain Equipment Helium 3.8 Warmzone Sleeping Mat, Deep Sea, 24 oz, Me-003604-ME-01123 , MPN: Me-003604-ME-01123 Deep Sea-O/S-na , UPC: 5053817129841 , Code: Z81-SLP-MNEQ81-ME-003604-ME-01123
  • Mountain Equipment Helium 3.8 Warmzone Sleeping Mat, Moss, 25 oz, ME-003603-M084 , MPN: ME-003603-M084 Moss-O/S-na , UPC: 5053817129858 , Code: Z81-SLP-MNEQ81-ME-003603-M084
Compare (0)
1 item has been added
Add at least two items to compare
Last updated 2026-08-01 UTC.