Outwell Self-inflating Mat Sleepnest Single 10 cm image 1 Outwell Self-inflating Mat Sleepnest Single 10 cm image 2 Outwell Self-inflating Mat Sleepnest Single 10 cm image 3 Outwell Self-inflating Mat Sleepnest Single 10 cm image 4 Outwell Self-inflating Mat Sleepnest Single 10 cm image 5

Outwell Self-inflating Mat Sleepnest Single 10 cm

£119.99(inc VAT) £140.00
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The Outwell Sleepnest Single 10cm is a self-inflating sleeping mat that uses zoned support and integrated cut-outs to provide proper body alignment during sleep. The 3D construction creates a deep 10cm profile that prevents you from feeling the ground beneath, while the extra-large foam cavities compress efficiently for transport but expand fully when you open the Flat High-Flow valve. The TPU (thermoplastic polyurethane) lamination bonds directly to the stretch polyester fabric, which means the layers won't separate over time like cheaper glued mats can. This construction method also keeps the weight at 3.05kg for a 200 x 73cm sleeping area.

The top surface uses 30-denier stretch polyester that moves with you rather than creating that slippery feeling some mats have, whilst the 190T 75-denier bottom provides puncture resistance against rough tent groundsheets. The valve system lets you fine-tune firmness by adding breath once the mat self-inflates, though on cold nights you'll need to give it longer to fully expand as foam takes time to decompress in lower temperatures. The mat rolls to 75 x 20cm, which fits inside most rucksack side pockets or can strap to the outside of your pack. Outwell has made this mat PFAS-free, removing the per- and polyfluoroalkyl substances that many outdoor manufacturers still use in water-resistant treatments.

This single-width mat works for side sleepers and back sleepers up to about 6ft 2in, though taller campers will find their feet hanging off the end. The 73cm width gives you space to shift position without rolling off, but couples sharing a tent would need two singles or should look at Outwell's double-width options. The included carry bag has no compression straps, so you'll need to use the mat's own straps or add your own if you want a tighter roll. Regular campers, festival-goers and anyone moving on from thin foam roll mats will notice the difference in sleep quality, particularly if you camp on stony ground or compacted pitches where basic mats bottom out.

Outwell Self-inflating Mat Sleepnest Single 10 cm Features


  • Deluxe zoned support for great comfort
  • Flat High-Flow valve enhances air flow
  • 3D shape with deep profile for ultimate comfort
  • Ultra tough stretch polyester with soft-on-skin technology
  • Delamination-proof TPU construction for extreme durability
  • Extra large foam cavities enhances comfort while reducing packed size and weight
  • Carrybag for easy storage and transportation
  • PFAS free

Specifications
  • Art. No. : 400143
  • Barcode - Product : 5709388160454
  • Fabric : Top and side: 30D stretch, bottom: 190T 75D, TPU coated
  • Weight : 3.05 kg
  • Textile fiber composition : Fabric: 100% Polyester
    Carry Bag: 100% polyester
  • Size : 200 x 73 x 10.0 cm (LxWxH)
  • Pack size : 75 x 20 cm
  • Valve : FHF Valve

Frequently Asked Questions

How long does the Outwell Sleepnest Single 10cm take to self-inflate?
The mat typically self-inflates to approximately 80 percent capacity within 5 to 10 minutes at room temperature. Cold weather slows foam expansion significantly because the material compresses during storage and requires warmth to decompress fully. Opening the Flat High-Flow valve allows air to enter whilst the foam expands. You then add several breaths to achieve your preferred firmness level. Leaving the mat in direct sunlight or a warm tent for 15 to 20 minutes before use speeds up expansion in cold conditions.
What is the R-value of the Outwell Sleepnest Single 10cm mat?
Outwell does not publish an official R-value for the Sleepnest Single 10cm. The 10cm foam thickness provides insulation suitable for three-season camping in UK conditions, typically from spring through autumn. The open-cell foam structure traps air which creates a thermal barrier between your body and the cold ground. For winter camping below freezing, you would need to add a closed-cell foam pad underneath or choose a mat with a published R-value above 4. The mat performs best when ambient temperatures stay above 5 degrees Celsius.
Can the Outwell Sleepnest Single 10cm be repaired if punctured?
The TPU-coated polyester construction can be repaired using standard camping mat repair kits containing TPU patches and adhesive. Clean the punctured area thoroughly with isopropyl alcohol, let it dry completely, then apply the TPU patch following the kit instructions. The direct lamination construction means repairs bond to the TPU layer rather than separating fabric and coating. Small punctures under 5mm typically repair successfully. Larger tears or damage along seams may compromise the mat's integrity. Always carry a repair kit when camping and inspect the mat before each trip to catch slow leaks early.
What size tent does the Outwell Sleepnest Single 10cm require?
The mat measures 200cm long by 73cm wide, requiring a tent with internal floor dimensions of at least 210cm by 85cm to accommodate the mat plus space for gear. Two-person tents typically provide sufficient width for one Sleepnest Single 10cm with room alongside for equipment. Three-person tents accommodate two singles side by side with approximately 30cm between them. The 10cm height when inflated needs adequate tent peak height to avoid contact with the inner tent fabric when sitting up. Most dome and tunnel tents designed for two or more people work with this mat size.
How do you store the Outwell Sleepnest Single 10cm between camping trips?
Store the mat unrolled or loosely rolled with the valve open in a dry location away from direct sunlight and heat sources. Keeping the foam uncompressed between uses extends the mat's lifespan and maintains its self-inflating capacity. The open-cell foam degrades when stored compressed for extended periods because constant pressure damages the cell structure. If space limitations require rolled storage, roll it loosely without using the compression straps and open it fully every few months. Avoid damp storage areas like garages or sheds where moisture can promote mould growth on the polyester fabric.
Is the Outwell Sleepnest Single 10cm suitable for backpacking?
At 3.05kg, the Sleepnest Single 10cm exceeds typical backpacking weight limits where ultralight gear usually stays under 1kg for sleeping mats. The 75 x 20cm packed size fits rucksack side pockets or straps to pack exteriors. Weekend backpackers and those prioritising sleep comfort over minimal weight carry this mat successfully. Multi-day hikers covering significant distances generally choose lighter inflatable mats weighing between 400g and 800g. Car campers, cycle tourers with panniers, and canoe campers benefit from the comfort without weight restrictions. The mat suits base camp situations where you hike to one location and stay multiple nights.

EAN-13 : 5709388160454
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If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 100 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

For further information of how to return your item, please visit the "Returning an Unwanted/Faulty/Damaged Item" section on our Help Page.
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