Will I Freeze Tonight?
Probably, but it's all part of the learning experience, right? I'm planning on hanging in the backyard tonight in the piney woods (two pine trees, to be exact) of Minnesota. Overnight lows should be just above 0F. For bottom insulation I'm planning to use a blue ccf with windshield reflector, and fleece blanket and 20 degree mummy bag on top all in the WBBB. Any tips before I head out tonight?
Sounds like your 20* top insulation may need some supplementing in 0* temps.
Wear a hat while sleeping. And, consider using a tarp.
Remember, bailing is not failing.
Good on you for giving it a go!
A simple cover over your hammock will make you much warmer... even a fleece blanket will work... binder clips and clothes pins are good!
Hat, extra pair of socks, hot water bottle in the hammock with you, tarp to help limit convection loss, snack before bed, good attitude, that is all I can think of.
Made myself a Hammock sock and it gave me a minimum of 10+ degrees inside my hammock. The more the wind blows the more effective it is.
If you dont have the proper materials you can rig a hammock sock up with just 2 bed sheets attached to each other making a tube or sock(however you want to look at it). If your hard pressed for time just use a stapler to attached the sheets together. You can pop the staples later and redeem your sheets again. You need around 90 inches of total fabric length to make a small hammock sock. 100 inches would be better.
+1 on the sheets, I do something similar with extra sil I have, I use document clips, roll the seam several times and clip. I would also use any wool you might have since it is in your backyard. Good hat is a must and hot water bottle is a must.
It is windy out there right now. If you can block the wind that will be the most help. Pull your tarp way down and maybe even pile a little snow to make a low wall on the windward side of the tarp.
Wear an extra layer of insulation (light coat or long underwear), you can always take a layer off if you are too warm; eat a hearty meal before you go to bed and don't forget a bit of chocolat to snack on should you wake up. It will give you that extra energy boost to keep you warm about 3 am.
If thing aren't working out don't be afraid to go inside. It is better to get a good nights sleep and think about what worked and what didn't in the morning (been there - done that).
Oh yea wave at all your neighbors who will be looking out their windows at you wondering what the ****is going on.:lol::lol: (been there - done that)
If you are not inside a mummy bag using it's hood and/or neck collar, then use enough head insulation to be roughly equivalent to a bag's thick hood.
If you were already conversant in vapor barrier theory and practice, I would suggest you take that approach. But since you likely are not ( though you might be ) I would say to not try and learn it in a hurry. A mistake would make things a lot worse. So, just layer up and wear significant insulation to try and get 0F out of your 20F bag.
I doubt that the blue ( WM? ) pad is up to zero, but hard to say how much your windshield reflector will add.
If you have a synthetic bag, sleep inside it to get a few more degrees of back warmth. Sense it is only rated to 20F, you might want to sleep inside of it anyway, as opposed to quilt style. Quilt style is way more comfy and easy to use, but drafts might do you in even if only 20F. A tiny draft can wreak havoc, so make sure you have all drafts under control.
Hot water bottle, and above all else, block that wind! And have fun!
Looks like we lost Dsherman.
Absolute number 1 way to warm up in a hammock when you get so cold you consider peeing you pants for the warmth.....
Boil up some water, put it in your bottle and cuddle it like there is no tomorrow. :shades: