Choosing ease and simplicity for the summer season
The U150 sleeping bag targets users who prioritize nightly comfort over pure lightweight. Its rectangular design offers freedom of movement for the legs, unlike a tighter mummy shape. It is suitable for summer camping trips, nights in sheltered areas, or van travel.
Moisture tolerance and gentle thermal contact
The synthetic cotton insulation retains its ability to trap body heat even after a damp night or when near a water source. The inner lining provides gradual warmth against the skin, without the cold sensation associated with some technical nylons.
Envelope construction: a format designed for static use
The envelope shape, as opposed to a mummy cut, makes it easier to get in and out of the bag, a practical feature for repeated use of this warm sleeping bag when camping, where the bag is opened and closed several times a day.
Durable nylon: an easy-care technical base
The durable nylon outer fabric is easy to clean after outdoor use (dust, light splashes), a relevant point for this camping sleeping bag intended for repeated rather than occasional use.
For nights as a duo with a 145 cm wide sleeping area and similar synthetic insulation, the Naturehike Double is the two-person version of this family.
Doubt about which bag is right for you?
The field guide helps you choose based on skill level, temperature, needs, and weight. Support answers specific questions.
Find my bag Contact supportFrequently Asked Questions
The Naturehike U150 has a comfort temperature of 11°C and a lower limit temperature of 7°C, measured to the ISO 23537 / GB/T 38426-2019 standard. These values apply under standard conditions: sleeper in thermal base layers, on an insulated sleeping mat. It is designed for camping, bivouacking, occasional hiking use (Summer).
The Naturehike U150 is filled with synthetic cotton. Synthetic insulation keeps insulating when damp, dries quickly and needs no special care — suited to changeable conditions or family trips. The Naturehike U150 weighs 1100 g, which places it in the lightweight category.
For static camping in France, a bag with a comfort temperature between 5°C and 15°C covers most situations from spring to autumn. Synthetic fill is often preferred for camping because it is easy to care for and tolerates humidity. Down is preferable if weight and packed size matter, especially if gear is carried on foot.
Night-time warmth when camping depends on several elements: a sleeping bag suited to the expected temperature, an insulated sleeping mat to cut heat loss through the ground (often underestimated), and dry clothes worn only for sleeping. Eating a hot meal before bed also helps the body produce heat during the night.
A down sleeping bag can be machine-washed at 30°C maximum on a delicate cycle, with a down-specific detergent (standard detergents damage the down). The machine should have a capacity of at least 7 kg. Low-heat tumble drying with tennis balls is essential to restore the down's loft. Do not spin at high speed.