The engine's answer
Best side sleepers sleeping mat in chilly nights around 3 °C, 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 €700 of the €700 ceiling, leaving €0.
What the engine asked for: a sleeping bag rated to 1 °C or lower, a mat with an R-value of at least 2.5, a pack of at least 35 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.
- 3F UL GearLanshan 2The budget design that made trekking-pole shelters mainstream.Bergfreunde · Trekkinn · Decathlon · Alpinetrek · eBay (used)
- ForclazMT500 0 °C DownDown warmth at synthetic money.Bergfreunde · Trekkinn · Decathlon · Alpinetrek · eBay (used)
- Therm-a-RestNeoAir Topo LuxeTen centimetres thick and rectangular, for people who value the night over the day.Bergfreunde · Trekkinn · Decathlon · Alpinetrek · eBay (used)
- OspreyExos 48The same pack for people who have already cut their kit down.Bergfreunde · Trekkinn · Decathlon · Alpinetrek · eBay (used)
4.11 kg on your back · €700 of a budget of €700
- Tent
- 3F UL Gear Lanshan 2: €130, 1.10 kg, Season rating 3, 50% match.
- Sleeping bag
- Forclaz MT500 0 °C Down: €130, 1.10 kg, Comfort rating 0 °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?
- €700 for all four items, €0 under the €700 ceiling. Prices are indicative euro list prices; the shops set their own.
- How much does it weigh?
- 4.11 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 3 °C?
- Its R-value is 3.7. For nights near 3 °C the engine requires at least 2.5, 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.
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