Unveiling the exact temperature a sleeping bag can "handle" is tricky, as it's more of a personal comfort equation than a fixed number. While the sleeping bag's temperature rating serves as a helpful guide, remember it's just that – a guide. Your cold tolerance, the sleeping conditions (wind, humidity, etc.), and even the clothing you wear all influence how warm you feel. Think of the temperature rating as your comfort zone, not an absolute limit. If you tend to run cold, err on the side of caution and choose a bag rated for colder temperatures than you anticipate encountering. Layering additional clothes and using a sleeping pad for insulation can also boost your warmth in unexpected chills. By understanding these factors and prioritizing your comfort, you can ensure your sleeping bag becomes a reliable ally against the cold, not just a number on a tag.