Oh Chowder! If you have it on PC, You'd love this Mod Compilation for that:
You might already know about these, and if you do, I really REALLY still want to post these for anyone else who might not know about them (if there is anyone)
Hypothermia v1.4
Steam Workshop :: Hypothermia v1.4
Frostfall - Hypothermia, Camping, Survival
Steam Community :: Error
Together, they make it so you have to be aware in the wild. When in Cold Weather, you start getting small messages gradually about your status (You fell cold, you feel chilly, you are Freezing, You are Freezing to death,etc) Your start getting problems from getting too cold ( Character gets slower, Stats get lowered, Your stamina runs out quicker, your vision blurs, etc) and you have to get to a Fire to warm up. You also can't just "Jump in Frigged Water".. and if you do, you better have a fire on the Other side. It also makes you start to get wet gradually in Rain as well. It makes taking Shelter for the Night a WHOLE awesome thing. ..I Love the "Warming Hands" animation your character makes when Hanging out in an Inn or buy a Campfire.
..which is why this Mod Works with it, and should totally be accompanied:
Camping Kit of the Northern Ranger
Steam Workshop :: Camping Kit of the Northern Ranger
You can set up a camp anywhere you want and place each individual piece to your liking. The Camps can be bought in a new Building in Riverwood, and the Camping Sets include Campfires, Tent, Bedrolls, Chairs, even Cooking pots! or Leather Wall Wind Breakers! Somewhat easy to place, and you can put up what ever you want from the kit. The Stuff can even be deployed inside a Cave, or Dungeon, or even a House if you just need More Bedrolls for you followers, or you need to light the fireplace of an abandoned building to warm up abit.
And the Other Prime Mod that has also Been developed to work with these is:
mp's More Complex Needs
Steam Workshop :: Imp's More Complex Needs
THIS is the one where you need to "Eat, drink and Sleep". It also has some great food reciepes like Jerky for Meats that are great for traveling, Lets you salvage water from flowing Rivers or Town Wells. you actually gain from eating difrent things (Protein Meter) Can get Nourishment from Alcohol, but get DRUNK on how much you drink (but still gets you alil Warm with the Mods Above.. Nothing like a Nice Warm Mead on a Cold Skyrim Night), and even have alittle bit better esteem results from eating something cooked (exp: you'd get it from eating Veggi Stew insted of just a carrot). I even love the Added bonuses of finding the Khajit Caravans, and being able to buy coffee beans from them to make a Hot cup of coffee. (and Caffine has a Buff as well) It's Great! It's the Mod where you find a Barrel Of Apples in a Dungeon, and instead of says "Pfft Trash" you say "OMG APPLES!!!!".
Optional, but a Mod that works with the Hypothermia Mods above, and should have been in the Game when it released if any mod should have been.
Cloaks of Skyrim
Cloaks of Skyrim at Skyrim Nexus - Skyrim mods and community
You can keep warmer if you find a cloak.
and UFO - Ultima Follower Overhaul
UFO - Ultimate Follower Overhaul at Skyrim Nexus - Skyrim mods and community
Only because your Follwer/Followers will do a Chilly Animation when you get too cold, and They will hang out and do their own thing in the Camps you set up (as well as anywhere, aka Taverns, homes,) when you use thee Shout "Command: Everyone Relax"
The Best Thing about this compilation isn't that it will just piss you off if you don't sleep, eat or take care in freezing Weather. It is that you get pretty nice Buffs (Although No where Game Breaking) if you take care of yourself, stop for a while, sip the wine and smell the Skyrim Mountain Flowers.