Primitive Camping & Bushcraft

Why You Wake Up Cold in a Hammock and How to Fix It

Episode Summary

Chris shares the story of his first winter hammock camp where he woke up shaking from the dreaded hammock freeze and learned why convective cooling robs campers of their warmth. He breaks down the real fixes under quilts, pads, tarp strategy and closes with a reminder that true peace comes from the One who holds us.

Episode Notes

At Camp Wut Da Heck, with smoke drifting from the fire and Mississippi kites overhead, Chris dives into a lesson every hammock camper eventually learns. He recalls his first cold night in a hammock when comfort quickly turned to misery and explains the science behind convective cooling how moving air under a hammock strips away body heat once insulation is compressed.

From there, Chris unpacks real-world solutions. Under quilts that hang beneath the hammock to trap warmth, three-season quilts for versatility, and budget options like closed-cell foam pads, inflatable pads, reflective pads, even cheap pool floats for short trips. He explores why tarp pitch and wind direction make or break a night’s sleep, how wool blankets can stand in for under quilts, and why testing setups at home is vital before heading into the backcountry.

This episode also includes practical wrap-up points: always plan for the underside of the hammock, remember that convective cooling is the main enemy, and know that gear like quilts and pads are worth their weight when the temperatures drop. Chris ties it together with Psalm 4:8, reminding listeners that peace isn’t found in a perfect setup but in trusting the One who holds them steady through the night.

To wrap things up, Chris challenges listeners to hang their hammock in the backyard or on the porch, experiment with pads or blankets if they don’t have an under quilt, and pay attention to what works. The Primitive Camping and Bushcraft Podcast is about lessons that keep you ready in the woods while strengthening your faith.

Episode Transcription

(upbeat music)

 

Welcome to the Primitive

 

Camping and Bushcraft Podcast.

 

I'm your host, Chris Speir.

 

So here we're gonna talk about gear,

 

grit and the kind of stories

 

you only get around a fire.

 

It's all about learning, adapting

 

and keeping your faith strong.

 

So whether you're a seasoned outdoorsman

 

or just looking to unplug and reconnect,

 

you're in the right place.

 

So pull up a chair by the

 

fire and let's get into it.

 

(upbeat music)

 

What I wanted to show

 

real quick is how to process,

 

how I process.

 

What I wanted to show

 

you real quick is how I,

 

what I wanted to do is show you.

 

All right, welcome back

 

to the Primitive Camping

 

and Bushcraft Podcast.

 

I'm here at Camp Wut-Da-Heck Today,

 

And it's a little warm.

 

It's cooler today than it has been,

 

but it's not 9,000 degrees.

 

It's a little overcast

 

today, the sun pops in and out.

 

I got the fire rolling

 

over here in the fire pit.

 

You may see some smoke flying in and out

 

if you're watching the video.

 

And we're just sitting

 

here under the shade.

 

And today, I wanna talk about something

 

that every hammock

 

camper learns sooner or later,

 

a valuable lesson.

 

(laughs)

 

Sometimes you learn this

 

lesson the hard way like I did.

 

It's not about broken buckles or broken,

 

what's the word,

 

carabiners, broken equipment,

 

or rip tarps or anything of the such.

 

It's not even about a leaky roof or rain

 

or anything like that.

 

It's a cold backside.

 

(laughs)

 

It's what I like to

 

call the hammock freeze.

 

I have a couple of

 

Mississippi kites flying around.

 

You might be able to

 

hear their little call.

 

They fly around looking for

 

dragonflies or large insects.

 

They look like a hawk and they're very,

 

very cool looking birds.

 

But that's neither here nor there.

 

The first time I went

 

hammock camping in the wintertime,

 

I thought I had it made.

 

I got out there, it was nice.

 

It was perfect weather.

 

I slown my hammock up between two trees.

 

I pitched me a little tarp above it.

 

Made a nice little

 

shelter, little A-frame.

 

I threw my blanket into the hammock.

 

And it was good to go.

 

There wasn't gonna be

 

hardly any mosquitoes.

 

In the fall, wintertime, the

 

mosquitoes kind of died down.

 

So here in South Mississippi,

 

it's the best time to go camping

 

because you don't

 

have as many mosquitoes.

 

Every once in a while you get some,

 

but not like it is in

 

full fledged summer.

 

This particular

 

evening was almost perfect.

 

The fire was burning down to the coals.

 

Bugs were making the little

 

orchestra in the background,

 

it was like a perfect evening.

 

I stretched out my hammock

 

and thought life was great.

 

At first it was, I

 

started sleeping like a baby.

 

And hammocks have a way of

 

making you feel so comfortable

 

with that gentle sway,

 

that little cradle feeling.

 

You know what I mean?

 

It's hard for me to describe.

 

You get to look out, you'd look around,

 

just not like living in a tent.

 

You got more view, let's

 

see, you got more freedom.

 

You're not as restricted.

 

You don't feel as claustrophobic.

 

Somewhere around two in the morning,

 

three in the morning,

 

something to that effect.

 

I didn't actually have a clock or watch.

 

I woke up, I was shivering.

 

Like completely bone chilling shivering.

 

And it wasn't just a little bit cold.

 

I mean, I was shivering pretty hard

 

and everybody knows

 

once you start shivering,

 

it's the first sign of hypothermia.

 

And I don't think I

 

was getting hypothermic,

 

but it was, golly, I can

 

remember this was cold.

 

My arms and my chest were warm,

 

but I was just freezing on my back,

 

just freezing on my back.

 

My whole underside, it

 

felt like it was pretty much

 

lying on an ice block.

 

I tried everything, I curled up tighter.

 

Tried putting my blanket in

 

between me and the backside.

 

I tried sleeping in

 

my blanket with a taco,

 

like a taco shake.

 

I tried laying diagonal,

 

nothing worked, nothing worked.

 

The cold was, it was just cold.

 

I finally got up and

 

started building the fire

 

because it was miserable.

 

And whenever I have a

 

miserable night's sleep

 

when I'm out careful,

 

I tend to just get up

 

and tend to the fire.

 

And it's called the

 

television of the woods,

 

so it's entertainment.

 

So I sat out there,

 

warmed myself up,

 

stubbed on my back to the fire.

 

So why does this happen?

 

Before we get any further on that,

 

on page 59 of my book,

 

Primitive Captain and Bushcraft,

 

if you haven't picked

 

up a copy swing by Amazon

 

or your favorite retailer,

 

then go ahead and pick up a copy

 

of the Primitive

 

Captain and Bushcraft book.

 

So on 59, I was talking

 

in here under shelter,

 

and I'm talking about how an under quilt

 

prevents warmth from

 

escaping via convective cooling.

 

And that is what

 

happened to me that night.

 

It's called convective cooling.

 

Here's how that works.

 

In a tent, you're on the ground.

 

The ground might be cold, but it's solid.

 

You lose some heat to conduction,

 

the transfer of heat into the earth.

 

But the ground don't move.

 

In a hammock, you're

 

suspended in the air.

 

Air is moving freely

 

underneath you all night long,

 

and that moving air

 

strips away your body heat.

 

Now, your sleeping bag or quilt works

 

by trapping loft little

 

pockets of warm air around you.

 

But as soon as you lay

 

down in your hammock,

 

all the insulation under

 

all the, I can't even talk,

 

all the insulation

 

underneath you is crushed.

 

It's crushed flat.

 

So there's no insulation.

 

No loft means no insulation.

 

And with air flowing

 

underneath the hammock,

 

that heat gets stolen almost immediately,

 

and that's called convective cooling.

 

So you can have a 20 degree sleeping bag.

 

Now, if you're in a

 

hammock on a 45 degree night,

 

you can still get cold.

 

You can still get cool.

 

And it's not because that bag is bad.

 

It's because the air

 

underneath you is pulling heat away

 

faster than the bag can

 

replace it or retain it.

 

So once you understand that,

 

you start to see why hammocks require

 

a little bit of extra planning.

 

And it's not just

 

about what's on top of you.

 

It's what's underneath you as well.

 

And that's gonna either

 

make or break your night,

 

to be honest with you.

 

So the best answer to convective cooling

 

is a hammock under quilt.

 

If you have never used one,

 

picture, and this is

 

exactly what it looks like,

 

but picture a sleeping bag that hangs

 

beneath your hammock.

 

So instead of on top of you

 

or around you like a cocoon,

 

it hangs below you and it kinda,

 

it contours to the hammock.

 

And it does not get compressed,

 

but your body, it stays insulated.

 

Your body warms it up and it keeps you

 

warm all night long.

 

The first time I used an under quilt,

 

it was, no other ways to describe it.

 

It was like night and day.

 

I strung it up, I climbed in the hammock.

 

And for the first time I slept through

 

a 20, some 29 degree

 

night, I believe it was.

 

And it was the first time I used it,

 

it was on 29 degree night.

 

And I didn't wake up cold.

 

I actually stayed warm.

 

And because my backside was so warm,

 

I did not stay as

 

covered up on the top side,

 

if that makes sense.

 

It was weird for me to

 

explain, but I'm a weirdo anyway.

 

If one part of me is hot,

 

the rest of me has to

 

compensate to cool off.

 

I don't know, but I do

 

that even at the house

 

when I'm laying in the bed.

 

If I'm covered up with covers, my feet

 

have to be uncovered.

 

If my feet are covered,

 

then my chest and all that

 

has to be uncovered, it's weird.

 

But my advice is to start

 

with a three season quilt,

 

spring, winter, fall type thing.

 

And it'll be, it depends.

 

Honestly, if you're going to go camping

 

in the wintertime with a hammock,

 

get you one with a three

 

season, like a three season quilt.

 

They got on the ends,

 

they attach to your hammock.

 

Some of them are carabiners.

 

They just attach there and

 

your hammock fits inside of it

 

like a taco.

 

And then on the other end,

 

it's got a carabiner does the same thing.

 

And they got different

 

lengths, different thicknesses,

 

different grades.

 

You've got some under

 

quilts or hammock quilts

 

that completely encompass the hammock.

 

And you sleep inside

 

a suspended mummy bag

 

is basically what it looks like to me.

 

That's the only other

 

way I can describe it.

 

But if you're serious

 

about hammock camping,

 

especially outside in the

 

summertime or the wintertime,

 

it is definitely worth every penny.

 

If you're sleeping outside in the

 

wintertime in the hammock,

 

it is worth the penny.

 

Now, if you're sleeping

 

out in the summertime,

 

a bug net is perfect.

 

You don't have to have

 

a bug net all winter.

 

Even here in South Mississippi,

 

you still do get some of the mosquitoes.

 

My advice is to start with this quilt,

 

pick you up a cheap one.

 

You don't have to buy any expensive.

 

If you watch my show, listen to my show

 

or anything like that,

 

you know that cheap

 

gear will get you through.

 

And I'm not saying

 

everything has to be cheap,

 

but try you something cheap

 

first, see if you like it,

 

and then upgrade it to

 

something more quality

 

that'll last longer.

 

Cheap gear is just as

 

good as quality gear.

 

It's a cheap gear is

 

not gonna last as long,

 

if that makes sense.

 

And you see where I'm coming from?

 

I'll probably get some

 

people throwing some darts at me

 

for that, but I'm not worried about it.

 

A three season quilt will

 

keep you warm down to 30 degrees.

 

And like I said, the one that I had was,

 

it was 29 degrees at night.

 

I remember it vividly.

 

Even the dog was shivering.

 

I had to cover them up in a wool blanket.

 

So that's all well and good,

 

but what do you do if you

 

don't have an under quilt?

 

Sleeping pads, that's

 

where a sleeping pad comes in.

 

A closed cell phone pad will work.

 

Now, is it gonna be as warm?

 

No, it's not gonna be as warm,

 

but they're lightweight, they're cheap,

 

and they'll stop the convective cooling

 

from stilling all your heat.

 

They're not gonna be the most comfortable

 

inside of a hammock

 

because hammocks hug your body

 

and a stiff pad can

 

feel a little bit awkward,

 

but they will do the job.

 

And I got Ranger patrolling around camp

 

here digging holes everywhere.

 

I don't know what he loves to dig.

 

Inflatable pads can work.

 

They pack smaller and

 

some are pretty comfortable.

 

And the one that comes to mind,

 

and hear me out on this now,

 

is the little

 

floaties for swimming pools,

 

the little things that you

 

lay on in a swimming pool.

 

You can get those cheap,

 

and they're great for

 

one-night campout trips

 

and two-night campout trips.

 

And those, I've used those before.

 

My brother has used those

 

sleeping on the ground before,

 

and they work, they work

 

perfect for a few days.

 

But if you're gonna do it long-term,

 

they're gonna pop,

 

they're gonna, whatever,

 

but they'll get you through.

 

Now, they're cheap.

 

You could pick them up at,

 

let's say, Dollar General

 

every fall sells off

 

all their summer stuff,

 

and you could pick these

 

things up for a dollar.

 

They're cheap, they're effective,

 

and I'm all about cheap and effective.

 

So if you don't get anything else,

 

you can use just that floatie,

 

what is it called, a

 

floating mat, a blow-up mat?

 

I'm not sure what it's called.

 

If you know what it's called,

 

leave a comment and let me know.

 

Then you got the reflective pads,

 

the foam pads with a shiny side

 

that bounces body heat back to you.

 

They're inexpensive,

 

and from my research,

 

they are surprisingly effective, I guess.

 

I have never used one, especially for,

 

like, fall camping, stuff like that.

 

I guess it's like the same

 

thought as a Mylar blanket,

 

Mylar emergency blanket.

 

But that would drive me nuts.

 

Every time I turned over,

 

I had that crinkle sound.

 

It reminds me of doing the

 

entropy survival bag video,

 

where they have an emergency tube tent,

 

and you just hop up inside that dude,

 

and it reflects all

 

your body heat back to you

 

and keeps you warm.

 

But as several commenters have commented,

 

and the truth is that if

 

you're already freezing cold,

 

you're already shivering,

 

hypothermia has already started,

 

and Mylar blanket ain't gonna help.

 

You have to have fire,

 

you have to have heat,

 

you have to have something

 

else to help warm you up.

 

Even with an underquilter pad,

 

the wind is gonna make a big difference.

 

If the breeze is ripping

 

underneath your hammock,

 

you're still gonna feel the chill.

 

Now there's several

 

things that you could do

 

with your tarp, and

 

that's why your tarp pitch

 

is gonna matter in the summertime.

 

A high open pitch is gonna

 

give you plenty of airflow,

 

that way you don't sweat to death.

 

But in a colder months,

 

you need to drop that tarp

 

a little bit lower and get the sides

 

close to the ground.

 

And I have seen several videos online

 

where people will take these tarps,

 

and it almost looks like a tent.

 

It is that high up off the ground

 

with their hammock in there.

 

And I'm like, dude, you

 

climb up in that hammock,

 

you're gonna be butt rubbing the ground.

 

It's just gonna keep

 

you barely off the ground.

 

And that's the truth,

 

that's what happened.

 

But if you get that tarp like an A-frame,

 

it's gonna keep the moisture off of you,

 

because usually in the wintertime, you

 

have a low dew point.

 

Like the low for the night is usually

 

gonna be the dew point,

 

especially here in South Mississippi.

 

You wake up the next morning,

 

and everything's gonna be

 

saturated with all kinds of water.

 

One of the other

 

options that people will use

 

is a wool blanket.

 

They'll put a wool blanket

 

up underneath their hammock.

 

And that does basically the same thing.

 

And wool traps all the heat,

 

and will do basically the

 

same thing as another quilt.

 

Your tarp does matter,

 

your shelter does matter

 

when you're hammock camping.

 

People, diamond fly works great for rain

 

and that kind of stuff.

 

A-frame is great for wind.

 

Now, you could probably do some sort,

 

some variant of a

 

lean-to, overhead lean-to,

 

where you got maybe two

 

or three feet at the top.

 

And then your ridge line,

 

and then down in the back.

 

That way you get some

 

protection from the dew

 

or the moisture of the air,

 

but it's gonna block the wind.

 

And that's feasible.

 

I'm not gonna do it like that.

 

I'm gonna do an A-frame no

 

matter where I go, what I do.

 

There's a reason why

 

these tarps are nine meters

 

by nine meters or whatever.

 

Three meters by three meters, I'm sorry.

 

That's what double D three by three is.

 

It's three meters by three meters.

 

So that's what, 10 feet, almost 10 feet,

 

right at 10 feet, nine

 

point something feet.

 

And if you got it at

 

nine point something feet

 

on each side, that's pretty good.

 

You're gonna have some decent coverage.

 

So that first night in the hammock

 

where I almost froze to death,

 

didn't give him much sleep at all.

 

I remember tossing and turning,

 

he finally get up and

 

start poking the fire.

 

Shivering to death.

 

But somewhere in the middle of it,

 

and then now thinking

 

back to it reminds me

 

of this verse in Psalms.

 

Psalms chapter four, verse eight says,

 

"I will lie down in peace

 

and sleep for you alone,

 

O Lord, make me dwell in safety."

 

That's powerful stuff.

 

"For you alone, O Lord,

 

make me dwell in safety.

 

I will lie down and sleep for you alone."

 

That verse speaks very

 

loud on very cold days.

 

It should remind us all

 

that peace isn't about comfort.

 

And it's not about a

 

warm bed or a perfect setup,

 

but peace comes in knowing who holds you.

 

The realization changed that night.

 

And I was still cold,

 

but I wasn't afraid.

 

I wasn't, and I don't see how afraid

 

I had anything to do with it.

 

I wasn't, I wasn't worried about it

 

because I knew that I went alone.

 

My brother was there camping.

 

He had another set up, but he wasn't,

 

he was camping on the ground.

 

He don't ever like bananas.

 

(laughs)

 

He don't like hammocks

 

because it makes him feel like a banana.

 

But God uses discomfort to

 

remind us of a deeper truth

 

that he is with us.

 

Even when the circumstances aren't ideal.

 

Eventually I learned to

 

fix the hammock freeze

 

or the convective

 

cooling with an under quilt.

 

And I learned various other ways

 

to make under quilts for my hammock.

 

God's gonna give us the tools

 

to face the challenges of this life.

 

He gives us his word.

 

He gives us his spirit, his presence.

 

Those are the under quilts for our soul.

 

They're gonna keep us steady

 

when everything else is cold

 

and everything else is shifting.

 

So what kind of under quilt do you have?

 

Do you even use an under quilt?

 

Do you even rely on an under quilt?

 

Do you go camping?

 

Do you go camping?

 

And use a hammock and

 

have an under quilt.

 

Now I wanna give you a few

 

little bullet points here.

 

I got written down, practical wrap up.

 

So here is the bottom line.

 

If you're going to sleep in a hammock,

 

always plan for your underside.

 

Always be ready to

 

keep your underside warm.

 

Always plan for the

 

bottom of your hammock.

 

Remember the term convective cooling.

 

That's what you're gonna be fighting off.

 

That is going to be your enemy.

 

Under quilts are best.

 

Pads also work.

 

Your overhanger, your shelter, your

 

tarp's gonna help out

 

a little bit, but it's not gonna be,

 

it's not gonna really,

 

you're still gonna be cold.

 

Now the direction that you hang this tarp

 

is gonna be what's

 

really gonna block the wind.

 

If you got this thing

 

turned in a direction

 

where the wind's gonna

 

keep on coming through,

 

then silly you, you're gonna freeze.

 

Pretty much no matter what.

 

That's why I wrote the

 

whole book here on shelter,

 

the whole chapter on shelter.

 

How to set your

 

shelter up to block the wind,

 

the elements, all that kind of stuff.

 

So don't wait until you're

 

in the woods on a long trip

 

to try to figure out

 

how to deal with this.

 

Plan for it before you leave.

 

Try it out. Try it out. Try it out. Try it out. Try it out. Try it out. Try it out.

 

If you can in your yard, try it out.

 

Try it out if you got a

 

front porch with posts.

 

Go ahead and set your

 

hammock up on the posts

 

out in the front yard or the front porch

 

and see if you can do it.

 

I got posts out there on my back porch

 

and I've set hammocks

 

up there several times.

 

Learn how to set your stuff up

 

before you have to depend on it,

 

before you get out

 

into the great outdoors,

 

before you go on a long backcountry trip.

 

Always know how to use your gear.

 

And I've said that

 

from 50 some odd episodes.

 

Always use your, always

 

know how to use your gear.

 

Always use your gear before you head out.

 

Always be proficient with

 

what you're going to use.

 

Unless you're trying something new out

 

and taking it to learn,

 

and this trip is going to

 

be your learning experience

 

on that piece of gear.

 

I've done that before.

 

I went camping just to try

 

out a specific piece of gear.

 

But I had another one

 

that was similar to it

 

to back it up just in case that one,

 

I couldn't get that

 

one or that one broke.

 

As the fires winded down here at Camp Wut-Da-Heck

 

for the day

 

Today, here's going to be

 

our action for the week,

 

or action tip for the week,

 

what our homework so to speak.

 

Set up your hammock and

 

spend the night in it.

 

Even if it's just in your backyard.

 

Front porch, back

 

porch, barn, shed, garage.

 

If you don't have an under

 

quilt, try some kind of pad.

 

Try a blanket underneath it.

 

Try something and set

 

something up to give you

 

some way to trap in some body heat

 

to keep you from freezing,

 

waking up with the chivers.

 

Get your tarp as low as

 

you can to block some heat,

 

or block the wind to keep

 

the heat trapped in there.

 

And then pay attention to how it feels

 

and whenever you get out

 

into the great outdoors,

 

you can replicate that.

 

And while you're out there,

 

take a moment to thank God

 

for the peace that He gives you,

 

even in the nights that are not perfect.

 

Just know that you can always

 

and should always rest in Him.

 

So thanks for joining

 

me today on this episode

 

of Primitive Camping

 

and Bushcraft Podcast.

 

If you found it helpful, go ahead and

 

share it with a friend.

 

Subscribe to the Primitive

 

Camping and Bushcraft Podcast

 

channel on YouTube.

 

Join the Facebook group.

 

I can never say that, Facebook group.

 

Join the group on Facebook,

 

the Primitive Camping and

 

Bushcraft Facebook group.

 

And then leave a comment.

 

Let me know if these

 

episodes are being helpful.

 

Just let me know.

 

Yeah, but anyway, until next time,

 

remember in all your

 

ways, acknowledge Him,

 

and I'll see you in the

 

next video or the next podcast.

 

God bless you.

 

Thanks for sitting

 

around the fire with me today.

 

If this episode gave you

 

something to think about,

 

if it helped you feel a

 

little bit more prepared,

 

or it even stirred your faith a tiny bit,

 

go ahead and share it with someone else

 

who might need it as well.

 

We don't go camping

 

to run away from life.

 

We come out here to

 

slow down and to recharge.

 

So grab another law,

 

throw it on the fire,

 

and remember this.

 

In all your ways, acknowledge Him,

 

and He will direct your path.

 

I'll see you next time.

 

God bless you.