Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: How much does the extra large sleep system weigh?
Document: The only thing to bear in mind is that the stuff-sack it comes with is too large for practical use (it's like a gear bag rather than a stuff-sack) so you need to budget about $50 more to get yourself an extra-large stuffy to keep it in.
When there are trees around i will sleep in my Eno hammock using both the bivvy and one or both bags (depending on the temperature).When all three pieces are packed into the included stuff sack it is definitely large and heavy. It is tough to compress the stuff sack with all three pieces in it down less than 12&#34; wide and 14&#34; tall. The combined weight is 9 lbs.
Awesome. This is by for the best sleep system for the money bar none. And I need sux more words
The ultimate all weather sleep system disigned thus far. Talk about versatility, exceptional price.This system will be a lifesaver when needed. -50 degrees? Great!
Love this sleep system! Have not had chance to use it in ecw but know I will be plenty warm in it under any condition. Cannot beat the price on this new product and I cannot say enough about the customer service. Theses people are fantastic to work with!
The sleep system is amazing!! I am military but was never issued one. I love it. Had an issue with a corroded zipper and the seller sent a new bivy cover. This is one Government item that was not made by the lowest contract bidder. If it was, they did a great job!
No frills. Just a gore tex tube with a hood for you to stare at the stars on a clear night and a zipper down the side for entry and exit. It is printed with woodland camo which isn't the worst thing in the world. i am actually beginning to like the look of it.All in all this sleep system could replace your tent! It can keep you warm and dry from temperatures ranging from 60 degrees fahrenheit all the way down to -50 degrees fahrenheit.
The MSS is a steal! thats Military Sleep System. Its a three piece shelter capable of keeping you alive at temperatures approaching -30 degrees F. With the right clothing the military claims you sleep comfortably in this thing at temperatures approaching -50. i would nt want to test that but i would rather have this sleep system than not if i were anywhere below 0.There are two sleeping bags in the set.
The entire system weights 10lbs. Stuff sack, patrol bag and bivy weigh 4.5. That's on the heavy side, but if you were doing some ultra lightweight backpacking, you could get a smaller/lighter compression sack and take only the patrol bag(and bivy if you don't have a tent. It's definitely warm, and i can fit in it fairly easily at 5'11&#34; 285lbs.
I would call it a 3 piece system. The 4th piece is the actual carrying/storage sack. Comes with warm weather sleep bag, cold weather sleep bag and waterproof outer shell. Use all 3 for extreme cold weather. It's a bit bulky when carrying all pieces, but the unless you're in the arctic conditions, you don't need all 3. The carry sack is coo because it has several straps going each way (circumferentially and longitudinally) so you can tighten them up make smaller & compress the contents.
Answer: yes