Rectangular sleeping bag for mild nights outdoors
The U150 sleeping bag prioritizes freedom of movement over compactness, featuring an envelope shape with the same width at the shoulders as at the feet. This geometry allows for natural turning and bending of the legs without putting tension on the fabric, for more comfortable recovery after a day of activity. The 11°C comfort temperature is aimed at summer camping trips or occasional bivouacking.
Synthetic insulation and moisture management
The synthetic cotton insulation maintains a good level of warmth even when the ambient air is saturated with moisture, unlike natural down, which is more sensitive to these conditions. The durable nylon outer fabric is lined with a soft interior that prevents a plastic feel against the skin.
Soft lining: a contact designed to minimize chafing
The inner lining feels soft enough to limit the systematic need for a sleeping bag liner with this compact sleeping bag, especially during summer outings where the bag is sometimes used in direct contact.
Durable outdoor nylon: resistance to repeated handling
The durable nylon outer fabric withstands the frequent handling (folding, packing, car transport) typical of regular camping use for this lightweight sleeping bag, without developing premature weak points at the seams.
If bulk is a factor, the Naturehike LW180 packs down to 12 x 29 cm for similar summer use.
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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. These values apply under standard conditions: sleeper in thermal base layers, on an insulated sleeping mat. It is designed for camping, bivouac, 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.