Exped Ultra 0°C / 32°F: Light as Air Summer Sleeping Bag

Feather-light, adaptable summer sleeping

As I delve into the world of summer sleeping bags, I can't help but be drawn to the Exped Ultra 0°C (32°F) – a true marvel in the realm of lightweight, high-quality sleep systems. It's not often that you come across a bag that strikes such an impeccable balance between weight, warmth, and comfort.

What really catches my attention is the intelligent design – the H-shaped down chambers and downshift function, which allow you to optimize heat distribution with just a few shakes. As someone who's experienced the great outdoors in various climates, I can vouch for the value of this kind of adaptability. It's a small but significant detail that sets the Ultra 0°C apart from the rest.

The passive heat collar and triangle foot box demonstrate a thoughtful approach to insulation, ensuring a cozy night's sleep without compromising on weight or packability. To top it off, the shell and liner are both eco-friendly and ethically sourced, which is something I always appreciate.

Although the price tag of $500 may seem steep, I firmly believe that investing in quality gear pays off in the long run. The Ultra 0°C / 32°F is a perfect companion for those summer nights when the temperature dips just enough to warrant a touch of extra warmth. It's clear that Exped has created something special here, and I'm eager to experience it for myself.

So, if you're in the market for a lightweight summer sleeping bag that doesn't compromise on comfort or warmth, the Exped Ultra 0°C (32°F) could be your ticket to a good night's sleep under the stars.


  1. Lightweight: At just 23 oz (size MW), the Exped Ultra 0°C (32°F) is feather-light, making it ideal for backpackers and hikers who want to minimize their load.
  2. High-quality insulation: The 850 cu. in. fill power goose down offers excellent warmth-to-weight ratio, ensuring a comfortable sleep in cooler summer conditions.
  3. Downshift function: The H-shaped down chambers allow for better heat distribution, enabling users to adapt the sleeping bag to their individual metabolism, sleeping mat, and outside temperature.
  4. Passive heat collar: The design of the heat collar offers additional warmth and a cozy atmosphere around the neck.
  5. Comfortable triangle foot box: This feature provides ample space for feet and prevents heat loss in this critical area.
  6. Eco-friendly materials: The shell and liner are made from recycled materials, are PFC-free, bluesign® certified, and Oeko-Tex® 100 certified, making the product environmentally friendly.
  7. RDS-certified goose down: The Responsible Down Standard certification ensures the down is ethically sourced, adding to the bag's sustainability credentials.


  1. Price: With a price tag of $500, the Exped Ultra 0°C (32°F) can be considered expensive, potentially making it less accessible to budget-conscious consumers.
  2. Limited temperature range: As a summer sleeping bag, it may not be suitable for colder temperatures or multi-season use.
  3. Mummy shape: While the mummy shape is designed for better heat retention, some users might find it restrictive and less comfortable compared to rectangular or semi-rectangular sleeping bags.
  4. Left zip only: The availability of only a left zip might be inconvenient for some users, particularly those who prefer a right zip option.
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