Gear Doctors Artemis 3D 8.3 R-Value Self-Inflating Camping Mattress
Artemis 3D is the comfort-first Gear Doctors camping mattress for car campers, side sleepers, cold-weather campsites, and anyone who wants a real bed feel outdoors. It combines a self-inflating Air-Foam core, 4 in thickness, a wide 79 in x 27.2 in sleep surface, and a brand-stated 8.3 R-value for serious campsite warmth.
This is not the pad you choose when every ounce matters. It is the pad you choose when sleep quality matters more than ultralight packed weight. Open the valve, let the foam start expanding, then use the included pump sack to finish inflation and tune firmness before sleep.
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Best for: car camping, cold-weather campsites, side sleepers, cot sleeping, overlanding, basecamp comfort, and guest bedding.
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Not best for: ultralight backpacking, thru-hiking, or long carries where a 6.4 lb mattress is too much.
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Inflation: self-inflating foam reaches most of its loft on its own; use the included pump sack to reach full firmness.
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Customer-loved for: thick cushioning, warm insulation, wide support, quiet comfort, and durable campsite build.
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Important first-use tip: inflate Artemis at home before your first trip and leave it open overnight so the foam fully recovers after shipping.

Quick Facts
| Specification |
Artemis 3D |
| Pad type |
Self-inflating Air-Foam camping mattress |
| R-value |
Brand-stated 8.3 R-value for cold-ground campsite insulation |
| Inflated size |
79 in x 27.2 in x 4 in |
| Packed size |
27.5 in x 9.4 in |
| Pad weight |
6.4 lb / 102.4 oz / 2.9 kg |
| Setup |
Self-inflates to about 80%, then pump-sack top-off for full firmness |
| Shell material |
75D tear-resistant polyester with water-resistant TPU coating |
| Included accessories |
Pump sack / carry bag, repair kit, and user instructions |
Why Campers Choose Artemis 3D
Review analysis shows Gear Doctors customers care most about comfortable sleep, durability, easy setup, warmth, and confidence that the pad will not leave them flat on the ground. Artemis 3D is built for the campers who put sleep quality first.
The 4 in Air-Foam structure gives your hips, shoulders, and back more room than a thin trail pad. The wide rectangular 3D shape gives side sleepers more usable surface area, and the high-insulation core helps reduce heat loss through cold ground.
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4 in comfort: thicker cushioning for side sleepers and comfort-first campers.
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Wide sleep surface: 27.2 in width gives more shoulder and hip room than narrow trail pads.
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Cold-weather insulation: brand-stated 8.3 R-value helps protect against ground chill.
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Self-inflating setup: foam expansion does most of the work before pump-sack top-off.
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Quiet, soft surface: built for a more mattress-like campsite feel.
Self-Inflating Setup With Pump-Sack Finish
Artemis is designed to make camp setup feel calm. Unroll the pad, switch the valve to inflation mode, and let the foam expand while you set up the tent, cot, or sleeping bag. In normal use, the pad reaches most of its loft in about 5 minutes.
For full thickness and firmness, use the included pump sack to top it off. The pump sack also doubles as the storage pouch, so you are not carrying a separate single-use accessory.
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Unroll: lay Artemis flat with the valve open in inflation mode.
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Wait: let the foam draw air in naturally.
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Top off: use the pump sack to reach your preferred firmness.
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Seal: close the valve fully before sleeping.
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Pack: open the valve, roll toward the valve with steady pressure, then store in the pump sack.

Built For Cold Ground, Cots, And Repeated Campsite Use
The Artemis shell uses 75D tear-resistant polyester with a water-resistant TPU coating. That gives the pad a tougher campsite-ready exterior for tent floors, cots, road trips, overlanding setups, and cold-weather basecamps.
The soft-touch surface is skin-friendly and quieter than many crinkly air-only pads. For best long-term durability, clear sharp rocks and debris before setup, use a tent floor or ground cloth when possible, and store the pad dry.

All-Season Campsite Warmth
With a brand-stated 8.3 R-value, Artemis 3D is the warmest sleeping pad position in the Gear Doctors lineup. It is built for cold-ground campsite comfort when paired with the right sleeping bag or quilt, clothing layers, and shelter setup.
Use it for fall camping, winter car camping, cabin trips, hunting camps, overlanding, and family basecamps where comfort and warmth matter more than small packed size.

A Better Choice For Side Sleepers
If your hips or shoulders usually press through thin camp pads, Artemis is the comfort-first upgrade. The 4 in thickness and 27.2 in width give side sleepers more support and more room to shift positions at night.
If you need a lighter backpacking pad, compare Artemis with ApolloAir or Ether. If you are driving to camp and want better sleep, Artemis is the stronger fit.
What Is Included
- Gear Doctors Artemis 3D Self-Inflating Camping Mattress
- Pump sack that also works as the carry bag
- Repair kit
- User instructions
- Ready-to-go product packaging


What To Know Before Buying
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Artemis is self-inflating: the foam expands through the valve, then the pump sack helps finish inflation.
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It is comfort-first, not ultralight: at 6.4 lb, Artemis is best for car camping, cots, basecamps, and short carries.
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First use can be slower: compressed foam may need an overnight home inflation before the first trip.
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Firmness is adjustable: add more air for support or release a little air if it feels too firm.
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Warmth depends on the whole sleep system: the pad helps reduce ground heat loss, but your sleeping bag, shelter, and clothing still matter.
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Storage matters: store it dry, unrolled, and with the valve open when possible to protect foam loft.
Who Artemis 3D Is Best For
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Side sleepers: thicker cushioning and a wider sleep surface than narrow trail pads.
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Car campers: mattress-like comfort when packed weight is not the top priority.
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Cold-weather campers: high-insulation pad for cold-ground campsite use.
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Cot users: adds warmth and cushioning on top of a camp cot.
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Overlanders and road trippers: durable comfort for repeated travel setups.
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Families and guests: a practical spare bed for cabins, tents, and sleepovers.
Frequently Asked Questions
+Is Artemis 3D self-inflating?
Yes. Artemis 3D is a self-inflating Air-Foam camping mattress. Open the valve and the foam begins drawing air in. Use the included pump sack to finish inflation and adjust firmness.
+How long does Artemis take to inflate?
Artemis usually reaches most of its loft in about 5 minutes, then the pump sack can top it off to full firmness. First use can take longer because the foam has been compressed during shipping.
+Is Artemis good for backpacking?
Artemis is not a good fit for ultralight backpacking or thru-hiking because it weighs about 6.4 lb and packs to 27.5 in x 9.4 in. It is better for car camping, cots, overlanding, and comfort-first campsites.
+Is Artemis good for side sleepers?
Yes. Artemis is the comfort-first Gear Doctors option for side sleepers because it is 4 in thick and 27.2 in wide, giving hips and shoulders more support than thinner trail pads.
+How warm is the Artemis 3D sleeping pad?
Artemis has a brand-stated 8.3 R-value, making it the warmest Gear Doctors sleeping pad position for cold-ground campsite use. Pair it with the right sleeping bag or quilt for the conditions.
+How big and heavy is Artemis?
Artemis inflates to 79 in x 27.2 in x 4 in, packs to about 27.5 in x 9.4 in, and weighs about 6.4 lb / 2.9 kg.
+What if Artemis loses air overnight?
First check that the valve is fully closed and set correctly. If it still loses air, inflate the pad and use soapy water or a bathtub test to find bubbles. Dry the area completely, then apply the included repair patch.
+How do I pack Artemis back into the pouch?
Open the valve, roll toward the valve with steady pressure to push air out, close the valve near the end of the roll if needed, then place the pad in the pump sack / carry bag.
+How should I store a self-inflating camping mattress?
Store Artemis dry, unrolled, and with the valve open when possible. This helps the foam keep its loft and self-inflate faster on your next trip.
+Is Artemis covered by Gear Doctors lifetime replacement support?
Yes. Artemis is backed by Gear Doctors lifetime replacement support. If troubleshooting or a partial replacement does not solve the issue, our team can review the case for an approved replacement.
If anything goes wrong, contact us and we will help.
support@geardoctors.com