When it comes to outdoor adventures, every ounce counts, especially when you're carrying your home on your back. A good night's sleep can make or break your trip, which is why choosing the right sleeping mat is crucial.

In this comparison, we'll delve into five top contenders in the world of sleeping mats: the Big Agnes Rapide SL Insulated Sleeping Mat, the Therm-a-Rest NeoAir XLite NXT, the Exped Ultra 5R Sleeping Mat, the NEMO Tensor All-Season Ultralight Insulated Sleeping Pad, and the Sea to Summit Ether Light XT Insulated Sleeping Mat.

R-Value: ensuring warmth and insulation

The R-Value measures a sleeping mat's ability to resist heat flow and provide insulation from the cold ground. The higher the R-Value, the better the insulation. Let's see how our contenders stack up:

  • Big Agnes Rapide SL Insulated Sleeping Mat: with an R-Value of 4.8, this mat offers excellent insulation for three-season adventures.
  • Therm-a-Rest NeoAir XLite NXT: despite its lighter weight, the NeoAir XLite NXT still delivers a commendable R-Value of 4.5, suitable for year-round use.
  • Exped Ultra 5R Sleeping Mat: matching the Rapide SL Insulated, this mat boasts an R-Value of 4.8, ensuring warmth even in harsh conditions.
  • NEMO Tensor All-Season Ultralight Insulated Sleeping Pad: offering the highest R-Value of the bunch at 5.4, the Tensor All-Season excels in providing insulation for four-season use.
  • Sea to Summit Ether Light XT Insulated Sleeping Mat: Though slightly lower at 3.2, this mat still provides ample insulation for cold-climate comfort.

Weight: balancing portability and comfort

For backpackers and hikers, every gram matters. Let's compare the weights of these sleeping mats:

  • Big Agnes Rapide SL Insulated Sleeping Mat: ranging from 482g for the Petite size to 709g for the Long Wide option.
  • Therm-a-Rest NeoAir XLite NXT: weighing in at 330g for the Regular Short size to 470g for the Large option, the NeoAir XLite NXT offers impressive weight savings.
  • Exped Ultra 5R Sleeping Mat: slightly heavier, with weights ranging from 585g for the Medium size to 700g for the Long Wide option.
  • NEMO Tensor All-Season Ultralight Insulated Sleeping Pad: ranges from 400g for the Regular Mummy size to 580g for the Long Wide option, offering a good balance between weight and insulation.
  • Sea to Summit Ether Light XT Insulated Sleeping Mat: weighs 488g for the Regular size and 625g for the Large size, providing a lightweight option for cold-climate comfort.

Pack size: maximising space in your backpack

When space is at a premium, the pack size of your sleeping mat becomes crucial. Here's how our contenders fare:

  • Big Agnes Rapide SL Insulated Sleeping Mat: packs down to 9 x 18cm to 11 x 20cm, depending on the size.
  • Therm-a-Rest NeoAir XLite NXT: packs down to approximately the size of a 1L water bottle, offering exceptional packability.
  • Exped Ultra 5R Sleeping Mat: packs down to 23 x 12.5cm to 27 x 14cm, depending on the size.
  • NEMO Tensor All-Season Ultralight Insulated Sleeping Pad: packs down to 10.0 x 4.0 inches in diameter, providing a compact option for all-season adventures.
  • Sea to Summit Ether Light XT Insulated Sleeping Mat: rolls up to 11 x 24cm, ensuring it doesn't take up too much space in your pack.

Price: finding value for your budget

Lastly, let's consider the price of these sleeping mats (price correct at the time of publication) and how they align with your budget:

  • Big Agnes Rapide SL Insulated Sleeping Mat: priced at £126.00, offering a good balance of performance and affordability.
  • Therm-a-Rest NeoAir XLite NXT: priced at £178.49, it's a premium option for those willing to invest in lightweight comfort.
  • Exped Ultra 5R Sleeping Mat: priced at £161.50, offering competitive features at a reasonable price point.
  • NEMO Tensor All-Season Ultralight Insulated Sleeping Pad: priced at £199.99, it's a high-end option for adventurers prioritising warmth and comfort.
  • Sea to Summit Ether Light XT Insulated Sleeping Mat: priced at £169.00, offering a good balance of performance and affordability for cold-climate comfort.

Each of these sleeping mats offers unique features to cater to different preferences and needs. Whether you prioritise weight savings, insulation, packability or affordability, there are a range of sleeping mats to suit your outdoor adventures. Consider your priorities carefully and choose the one that best fits your requirements for a comfortable night's sleep under the stars.

Increase your sleep system's versatility with Closed Cell Foam mats

You can add a closed cell foam (CCF) mat to your 3-4 season sleeping mat to increase the R-Value and take it to a true all-year mat/sleep system.

Closed-cell foam mats offer durability, insulation and versatility. Let's compare four popular CCF mat options: the Therm-A-Rest Z Lite SOL, Exped FlexMat M, the Big Agnes TwisterCane Bio Foam Sleeping Mat and the NEMO Switchback Ultralight Foam Sleeping Pad. (Prices correct at time of publication).

Therm-A-Rest Z Lite SOL

  • Price: £50.95
  • Weight: 410g
  • R-Value: 2.0
  • Pack size: 51cm x 13cm x 14cm

The Therm-A-Rest Z Lite SOL is a favourite among ultralight enthusiasts for its lightweight design and impressive warmth. With an R-Value of 2.0, it offers reliable insulation for year-round use. The ThermaCapture™ surface reflects radiant heat back to your body, boosting warmth by 15%. Its compact folding design makes it easy to pack, and its durability ensures long-lasting performance.

Exped FlexMat M

  • Price: £24.99
  • Weight: 325g
  • R-Value: 1.5
  • Pack size: 52cm x 15cm

The Exped FlexMat M is another lightweight option that offers good insulation with an R-Value of 1.5. It's suitable for temperatures down to 6°C and can be used alone or under an inflatable mat for added protection and insulation. The rapidly-deployable folding form makes it convenient for backpacking, and its durable construction comes with a 5-year warranty.

Big Agnes TwisterCane Bio Foam Sleeping Mat

  • Price: £39.95
  • Weight: 397g
  • R-Value: 1.7
  • Pack size: 51cm x 18cm

The Big Agnes TwisterCane Bio Foam Sleeping Mat stands out for its environmentally-conscious materials. Made from sugarcane biomass, it's a sustainable option for eco-minded adventurers. With an R-Value of 1.7, it provides a firm, insulated barrier between you and the ground. Its unique EVA foam contains more than 60% sustainably grown sugarcane resin, making it an environmentally friendly choice.

NEMO Switchback Ultralight Foam Sleeping Pad

  • Price: £49.99
  • Weight: 14.5 oz / 415 g
  • R-Value: 2
  • Pack size: 20.0 x 5.0 x 5.5 in / 51 x 13 x 14 cm

The NEMO Switchback Ultralight Foam Sleeping Pad redefines closed cell foam mats with its innovative design and unbeatable performance. It offers exceptional comfort and warmth for outdoor enthusiasts. The Switchback is lightweight and compact, making it perfect for any adventure. With an R-Value of 2, it provides reliable insulation to keep you warm throughout the night. Its hexagonal nodes, crafted from dual-density Axiotomic™ foam, offer optimal support and plushness, while the metallised thermal film layer reflects heat back to your body for added warmth.

Whether you're embarking on a summer backpacking trip or braving winter conditions, adding a closed-cell foam mat to your sleep system can enhance comfort and insulation. Consider your priorities (whether it's weight, warmth or sustainability) and choose the mat that best suits your needs for your next outdoor adventure.

Why not check out our other expert written blogs to become a master of the outdoors


April 29, 2024 — Jim De'Ath