DownTo1 Packs

The engine's answer

Best side sleepers sleeping mat in mild summer nights, under €700

Therm-a-Rest

NeoAir Topo Luxe

Ten centimetres thick and rectangular, for people who value the night over the day.

  • Very thick and very comfortable
  • Wide rectangular shape
  • Quiet fabric compared with the NeoAir range
  • Heavy for a backpacking mat
  • Bulky packed

Find it at Bergfreunde · Trekkinn · Decathlon · Alpinetrek · eBay (used)

Why it wins, in numbers

Therm-a-Rest NeoAir Topo Luxe is the sleeping mat the engine picked for this trip: €200 and 810 g, R-value 3.7, a 96% match on the questions asked. The kit around it comes to €660 of the €700 ceiling, leaving €40.

What the engine asked for: a sleeping bag rated to 6 °C or lower, a mat with an R-value of at least 1.5, a pack of at least 38 L, and €700 for all four; anything that falls short of these is flagged beside the item.

The kit it belongs to

Four items chosen together, not four separate winners. Swapping one moves the others.

4.51 kg on your back · €660 of a budget of €700

Tent
3F UL Gear Lanshan 2: €130, 1.10 kg, Season rating 3, 50% match.
Sleeping bag
Deuter Orbit +5° SQ: €90, 1.50 kg, Comfort rating 5 °C, 50% match.
Sleeping mat
Therm-a-Rest NeoAir Topo Luxe: €200, 810 g, R-value 3.7, 96% match. Strongest on: Sleep style.
Backpack
Osprey Exos 48: €240, 1.10 kg, Capacity 48 L, 50% match.

What the runners-up gave up

Each of these still leaves a kit that closes — the budget holds and the pack shuts. This is where each one lost.

  • Robens PrimaCore 90A thick, warm self-inflating mat for people who have given up on grams.Robens PrimaCore 90 — €130, 1.10 kg — gives up Weight: 1.10 kg against the winner's 810 g. It scores 92% to the winner's 96%.
  • Sea to Summit Ether Light XT InsulatedTen centimetres of air for people whose hips hate the ground.Sea to Summit Ether Light XT Insulated — €200, 480 g — gives up R-value: 3.2 against the winner's 3.7. It scores 89% to the winner's 96%.
  • Sea to Summit Ether Light XT Insulated Women’sThe Ether Light with more insulation where it is usually needed and less length.Sea to Summit Ether Light XT Insulated Women’s — €200, 460 g — gives up Length: 168 cm against the winner's 183 cm. It scores 88% to the winner's 96%.

Questions this trip raises

How much does the whole kit cost?
€660 for all four items, €40 under the €700 ceiling. Prices are indicative euro list prices; the shops set their own.
How much does it weigh?
4.51 kg base weight — tent, sleeping bag, mat and pack together, before food, water and clothes. The pack is rated to carry 16 kg comfortably.
Is Therm-a-Rest NeoAir Topo Luxe warm enough on the ground at 8 °C?
Its R-value is 3.7. For nights near 8 °C the engine requires at least 1.5, which it meets.

Change an assumption

This page answers one trip. Yours is not that trip — adjust the nights, the budget or the company and watch all four re-rank.

Build my kit

Specifications are manufacturers’ own published figures and prices are indicative, not live. Comfort ratings and R-values are comparable across brands but describe a standardised sleeper on standardised ground — neither is a promise about you on a particular night. Check the current spec and price with the retailer before buying.