A good night's sleep in a tent or campervan starts with what's underneath you. Self-inflating mats have become the go-to choice for touring campers — but with thicknesses ranging from 3cm to 12cm and prices to match, choosing the right one isn't always obvious. This guide breaks it down.
What Is a Self-Inflating Mat?
A self-inflating mat combines an open-cell foam core with an airtight outer shell. Open the valve and the foam expands, drawing air in automatically. Close the valve, add a few top-up breaths if needed, and you're done. They pack down smaller than traditional foam mats and offer far better insulation and comfort than basic airbeds.
Thickness: What Do the Numbers Mean?
- 3–5cm – Lightweight and compact. Good for backpackers or as a secondary mat. The Outwell Sleepin 3cm Double and Vango POPTOP 5cm sit in this range — fine for summer camping on level ground.
- 7.5cm – The sweet spot for most touring campers. Noticeably more comfortable than 5cm, still packs reasonably small. The Outwell Sleepin 7.5cm Double and Vango Arcadia 7.5 Double are popular choices.
- 10cm – Premium comfort, closer to a home mattress feel. Ideal for longer stays or campers who struggle to sleep on firmer surfaces. See the Vango Comfort 10 Double, Outwell Dreamcatcher Double 10cm, and Vango Arcadia 10 Double.
- 12cm+ – Maximum comfort. The Vango Rock & Roll 12cm is designed for van lifers and motorhome users who want a near-bed experience.
Single vs Double
- Single mats are lighter and easier to manage — good for solo campers or couples who prefer separate mats. See the Outwell Sleepin 10cm Single and Vango Arcadia 7.5 Grande.
- Double mats are more convenient for couples — one mat, no gap in the middle. The Outdoor Revolution Skyfall 200 Double and Outwell Dreamcatcher 5cm Double are strong options.
Insulation: Why R-Value Matters
R-value measures thermal resistance — how well the mat stops cold transferring from the ground. For UK summer camping, an R-value of 2–3 is sufficient. For shoulder season or Dartmoor-style exposed camping, aim for 3–4+. Thicker mats generally have higher R-values, but check the spec sheet rather than assuming.
Van Life & Motorhome Mats
If you're fitting out a van or motorhome, look for mats designed to fit specific vehicle footprints. The Outwell Self-Inflating Mat Dreamboat Campercar is shaped to fit standard campervan berths. The Outdoor Revolution Camp Star Rock'n'Roll 100 Double is designed for rock-and-roll beds.
Quick Decision Guide
- Backpacking or ultralight: 3–5cm single
- Weekend family camping: 7.5cm double
- Longer touring stays: 10cm double
- Van life / motorhome: 10–12cm, vehicle-specific fit
- Cold weather / shoulder season: 10cm+ with R-value 3+
Planning a camping trip to Cornwall, Dartmoor, or the South West? Ground temperatures drop quickly on moorland pitches and coastal fields after dark — a 10cm mat with a solid R-value is worth the investment if you're camping in the region beyond July. If you're passing through Newquay, you're welcome to come in and feel the difference between thicknesses in our showroom before you buy.
Frequently Asked Questions
Do self-inflating mats need to be fully inflated manually?
No — the foam core draws air in automatically when you open the valve. Most mats benefit from a few extra breaths to reach your preferred firmness, but there's no pumping required.
How do I store a self-inflating mat?
Store it unrolled with the valve open. Rolling it up tightly for long periods compresses the foam and reduces its ability to self-inflate over time. Most mats come with a storage bag — use it for transport, not long-term storage.
Can I use a self-inflating mat in a campervan or motorhome?
Yes — several mats in our range are designed specifically for van and motorhome berths. The Outwell Dreamboat Campercar and Outdoor Revolution Camp Star Rock'n'Roll 100 Double are shaped to fit standard vehicle sleeping platforms.
What's the difference between a self-inflating mat and an airbed?
An airbed relies entirely on air for support and insulation — it offers little thermal resistance and can feel cold in lower temperatures. A self-inflating mat uses foam for both structure and insulation, making it significantly warmer and more stable on uneven ground.
How long do self-inflating mats last?
With proper care — stored open, kept dry, and not over-inflated — a quality self-inflating mat should last 5–10 years. Valves and seams are the most common failure points; most brands offer repair kits.
Browse the full range of self-inflating mats at Newquay Camping Shop — available for fast UK delivery or click and collect from our Newquay store.
