The engine's answer

Best comfort-first backpacking kit for one person on a weekend in chilly nights around 3 °C, under €400

Why it wins, in numbers

The four items come to €400 of the €400 ceiling — €0 to spare — and weigh 4.45 kg together before food and water. They pack to 34 L of the 50 L the pack offers.

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 34 L, and €400 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.

4.45 kg on your back · €400 of a budget of €400

Tent
3F UL Gear Lanshan 2: €130, 1.10 kg, Season rating 3, 77% match. Strongest on: Grams.
Sleeping bag
Forclaz MT500 0 °C Down: €130, 1.10 kg, Comfort rating 0 °C, 43% match.
Sleeping mat
Naturehike R5 Insulated: €80, 750 g, R-value 5.0, 69% match. Strongest on: Grams.
Backpack
Forclaz MT100 Easyfit 50: €60, 1.50 kg, Capacity 50 L, 33% 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 Spire IIA light, cheap synthetic bag for mild nights.Robens Spire II — €120, 900 g — gives up Comfort rating: 4 °C against the winner's 0 °C. It scores 22% to the winner's 43%.
  • Naturehike Ultralight AirThe budget end of the air-mat market, with the expected caveats.Naturehike Ultralight Air — €50, 480 g — gives up R-value: 2.5 against the winner's 5.0. It scores 57% to the winner's 69%.

Questions this trip raises

How much does the whole kit cost?
€400 for all four items, €0 under the €400 ceiling. Prices are indicative euro list prices; the shops set their own.
How much does it weigh?
4.45 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 the pack big enough for 2 nights?
The tent, bag and mat plus food and clothes for 2 nights pack to about 34 L; Forclaz MT100 Easyfit 50 holds 50 L.

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.