A blow up sleeping mat sits between you and the ground, and the difference in warmth and comfort between a good one and a poor one is noticeable from the first night out. Whether you're heading out for a weekend on a campsite or covering longer distances on foot, understanding what separates these mats helps you choose one that suits how you actually sleep and travel.
Inflation, Insulation and R-Value
Inflatable sleep mats vary in how they're inflated and how well they insulate. Most are inflated by mouth, a stuff-sack pump, or a small electric pump — each adding slightly different weight and convenience trade-offs. Some mats include a small amount of insulation inside the baffles, which improves their warmth-to-weight ratio compared to a plain air chamber.
Insulation performance is often expressed as an R-value. A higher figure means better resistance to cold from below. For mild UK summer camping, a lower R-value is generally adequate, but for shoulder season or exposed sites, it's worth checking this figure before buying.
Thickness, Weight and Packability
Thicker mats tend to offer more comfort but add bulk and weight. A mat that packs down small is a genuine advantage for backpacking, where every litre of pack space counts. Some self inflating camping pads use open-cell foam that expands on its own with minimal effort, then compresses back down for packing — a practical option if you prefer a simpler setup routine.
When comparing options at Camping Depot, it helps to weigh up:
- Packed size — relevant if the mat needs to fit inside or strap to a rucksack
- Inflated thickness — deeper mats generally cushion better on uneven ground
- Weight — ultralight options exist, but tend to sacrifice thickness or insulation
Size, Shape and Sleeping Style
Most mats come in regular and large sizes, with some brands offering wider or tapered options. A tapered camp air mat is lighter and packs smaller, but suits side sleepers less well than a rectangular design. Consider your shoulder width and whether you tend to move around in your sleep — a mat that's too narrow can leave you rolling off in the night.
Mummy-shaped mats pair well with mummy sleeping bags and keep pack volume low. Rectangular mats offer more freedom of movement and work better for car camping or family trips where weight is less of a concern.
