Does A Heated Sleeping Bag Really Work? How Is It Heated?

A night under the stars is a romantic idea for many people, but sometimes (even in spring and summer) it can get pretty chilly under the night sky -- the chill that comes after a pleasant chat and into a tent around a warm campfire can make camping a daunting experience, especially if you have to work up the courage to dive into a cold sleeping bag.

That's how the heated sleeping bag was born.

The sleeping bag itself is three-layer structure, the sleeping bag itself is 250g/㎡, the upper piece is attached 200g/㎡, the lower piece 200g/㎡ :

1. The lower layer of the inner liner of the whole sleeping bag is equipped with 4 graphene heating sheets for charging and heating. The heating gear has 3 levels, and the high and low levels respectively correspond to the color of the lamp: red, green and blue;

2. Sleeping bag recommended voltage: 5v, recommended power 6~9w, recommended voltage: 12v, recommended power 20~30w;

3. High grade temperature: 50-55℃, use time of about 3 hours, medium range: 45-50℃, use time of about 4 hours, low range 40-45℃, use time of about 5 hours;