TETON Sports Ultralight Mummy Sleeping Bag, 3-4 Season

I recently camped in -14C with wind chill I climbed in with a base, mid and top layer on, plus a toque and I was uncomfortable all night. I was quite comfortable when it was only -5C

TLDR; internal fabric was uncomfortable for me, and the short size was much smaller than anticipated (I’m 5’3, it’s rated for folks under 5’7 and I barely fit in it). Despite using it incorrectly (as a sleeping quilt) because it was too small, it prevented me from getting cold in a 35° alpine storm. Would recommend, just make sure to get the sizing right and be prepared for a cotton interior.

I want to start by saying I really wanted to like this bag. I was so excited to get it, it was my first nice backpacking bag and I knew it was going to be pretty chilly on our upcoming trip so I wanted to get a proper bag. I read so many reviews raving about it, and I was so stoked to give try it out.

I ordered the short size because I’m 5’3 and they say the bag is 6’3 and for people under 5’7, so I thought it’d be a good fit. I was wrong 😞 I tried the bag out when it came and it just barely fit me from foot to head. Once in it, I couldn’t move at all. Again, I was so excited by the bag that I thought I’d be able to make it work, so I decided to bring it on the trip.

Our first night out, we were camping in a cloud so it was chilllllyy. I got in the bag and it was toasty, but the cotton fabric on the inside gripped my fleece leggings and sweater so I really couldn’t move. I ended up getting claustrophobic, completely unzipped the bag and used it like a sleeping quilt instead. The second night out, we were camping at 5000 ft and a storm rolled through in the night. The temp dipped to 35°, with incredible winds and rain beating on the tent. The reason I say this is despite me not using the bag correctly, I didn’t get chilled. Sure, there were points where I was absolutely not warm, but I wasn’t shivering and I was able to get comfortable enough to sleep upon repositioning.

The issues I had with the bag are like 75% on me for not doing better research or getting the bag earlier on for a car camping trip that I could have had a backup on in case I didn’t like it. The fabric on the inside is incredibly warm and truly is just a preference thing for me! As for the sizing, I should have looked more in depth into the specs, and I recommend folks do it as well. The short size is probably better suited for kids than adults.

Despite my issues with the bag that’s causing me to return it, I still recommend it! It is a reasonable weight for backpacking, compacts and rolls super well (it fit in my 45L bag), and is super warm.

For starters, this bag is an excellent value and a very nicely made product. I am also a huge fan of TETON products and own an Explorer 4000 pack. I’ve tested this bag down to -5 F inside of a hot tent and survived somewhat comfortably (really warm until the stove went out). My sleep system on that test consisted of a lightweight cot, closed-cell foam mat, inflatable pad (R-value of 4.5), sleeping bag liner, an inflatable pillow, and the LEEF 0F bag. Additionally, I wore appropriate base layers, was well hydrated, and had a warm meal with tea before bed. The temperatures that night ranged from a low of -5F at 1 AM to a high of about 4F at 6 AM. I am aware that -5F is below the rating for this bag, but it still performed well.

I say I survived somewhat comfortably because the bag would come open during normal tossing and turning in the night, letting in some cold air that would wake me up. I would then re-seal the bag and drift back to sleep. I had the zipper all the way closed and the velcro strap secured, too. I think it kept coming open due to the bag being a bit snug around my shoulders. I am of a larger build at 6′ and 215 pounds and I purchased the regular size. The length was perfect and there was actually plenty of wiggle room around the legs, feet, and waist area. I just ran into an issue with the width at the shoulders that makes it a bit difficult to get the bag fully closed and can cause it to come open with movement. That is literally my only complaint and its not a major issue for me. I would recommend this bag for casual winter camping, hot tenting, and early spring/late fall camping.

Pros:
– Durable outer shell fabric and very soft interior lining
– Included compression sack. Packs down to a decent size for a 0F bag.
– Comfortable and warm
– Good color options
– Decent weight, not too heavy but certainly not ultralight.

Cons:
– A bit snug by my shoulders
– Interior pocket could use a zipper, rather than a single velcro strap.

Lo probé en a una temperatura de 10° y para nada pase frío, esta muy acolchonada y acomodar.pañada de un buen sleeping pad se duerme excelente 👌