So here we are. In the Wind River Range of Wyoming on the Cirque of the Towers at the
end of September. So needless to say it's really cold. I don't know about you but i like a good
night's sleep and part of that good night rest is staying warm. Zero degree bags are not cheap
and my original bag is pretty expensive too it was a four hundred dollar bag. So to have two sleeping
bags running me over a thousand bucks really didn't see ideal so this week i'm gonna try
something out. This is the Sea to Summit thermolite fabric reactor extreme. This thing claims to add 25
degrees to your bag. That's a really big claim. I am using an REI co-op sleeping bag this week
it is rated at 17 degrees so if i got 25 more degrees out of this thermolite fabric reactor
for about 20% of the price of a zero degree sleeping bag i would be super happy. Now it is
a little bulky you can see, not the most packable thing but you know i'm willing to give it a shot.
We're gonna run a test, super scientific out here. Tonight i am not using this.
This is what i will be wearing to bed. Beanie, mid-layer, shirt, intra wool leggings and socks.
Obviously i won't wear the shoes to bed i will be sleeping in this, the Nemo dagger two person tent.
I have my Klymit insulated v light which i really like. Its got a good r-rating make sure you have a good
r value on your sleeping pad if you're gonna be sleeping in the cold. If you want to know more
about r-ratings and sleeping pads and setting up your sleeping situation in general i have a
video on that i'll link it in the description below and there should be a card up here. I will
also have an extra down jacket on standby if i get too cold tonight. No sleeping bag liner
we will see if i can stay warm and then tomorrow i will sleep with the liner so let's go to bed.
That sounded weird. That was creepy, I'm sorry for that.
Well good morning if you noticed i have moved my tent into the sun because it's soaking wet.
We had a heavy rain, some snow in these mountains here around us up on the cliffs. The evening started out
super warm i mean without the liner i do have good gear and i was reminded how much i like
this tent. It's just an awesome tent. Super roomy and super comfortable. My insulated
sleeping pad worked really well and it poured rain until about three in the morning and about
3:30 it started to get quite cold. Not where i was freezing
or in danger or anything but you know kind of uncomfortable, cold on the extremities. I did
actually put on one more layer of down. So that's our baseline that we've established. We're gonna
hike to the next lake today and we will test out that liner tonight.
Oh it feels soft. Look proof i just took it out of the bag it's still got the advertisements in it.
Okay so there it is goes in the sleeping bag.
I'm already feeling it's gonna be a cold one tonight so
we'll test this out and i'll see you in the morning.
Well first thing i'll say after using this sleeping bag liner is
i did get a better night's sleep that is the first takeaway that i had when waking up this morning.
I didn't wake up as much, i didn't toss and turn, i was warmer. You know this particular sleeping bag
liner is made with fleece and it's super soft. I don't know about your sleeping bag but my sleeping
bag has that real synthetic feel to it. It's not terrible but it's not the most comfortable so
right away i noticed that laying inside this was way more comfortable. It was way more like
that nice blanket you have at home when you're laying on the couch. And this was
warmer, i did not have to add any extra clothes last night in fact i ended up taking my socks
off and sleeping without my socks. I noticed that especially that my extremities, my arms,
my feet, those stayed much warmer with this than they usually do with just my sleeping bag
and i asked my mom who i'm hiking with right now if she thought last night was colder or
warmer than the night before and she thought that last night was colder so it wasn't like we had an
extra warm night or anything. I truly believe that our experiment was fair. This does claim to add 25
degrees to your sleeping bag. I do not think that is right. Maybe it's in the way that
a sleeping bag like mine is rated at 17 degrees but that's just to survive. Maybe this is rated
at 25 degrees of extra survival but when you're talking comfort, i think with this you're looking
at about five more degrees like right around five seven more degrees of comfort adding this
particular sleeping bag liner. So this is nice to have, it is comfortable, it does keep you a little
bit warmer, however i don't think this is going to replace a zero degree bag in the winter time.
This is just like a nice extra little thing. It is bulky, it is pretty heavy, what is important
to you? Do you want to be more comfortable when you sleep, or do you want to pack lighter? So i've been
testing this liner hiking the Wind River Range in Wyoming. Hiking 50 miles on the Cirque of the Towers
with my 67 year old mother so if you want to see that video, check it out right here. More gear
videos here, and more cool hiking stuff over here. Thanks for watching, and i'll see you next time.