We layer a blanket between the sleeping pads and the sleeping bags for some extra insulation. When it is very cold I also use a comforter over the sleeping bags. We wear warm clothes to sleep in, including a beanie. Hand warmers in our socks and body warmers in our shirts are helpful as well. Our sleeping bags zip together, allowing us to take advantage of the shared body heat. Pairing these strategies together made it reasonably comfortable at that temperature.
I did a good bit of research before purchasing ours. Of course, I wanted something that would keep us warm. Mummy bags are very ozark trail screen house effective for keeping warm, but I am not comfortable in a confining bag. We bought two Ozark Trail 30-Degree Sleeping Bags.
Made with soft polyester, the outer layer being a diamond ripstop material, the bag is both comfortable and durable. The zippers are sturdy, with no problems in the two years we have used them. I would not recommend this product to anyone unless I wanted ozark trail screen house them to freeze and get a terrible night’s sleep. I nearly froze to death on the trail, and craftsmanship is garbage (to put it mildly). I bought the zero degree bag and nearly froze to death. Day one, night one…the zipper tore and cord in hood broke.
We have stayed nicely warm while sleeping in the cold in this bag. Rated for 30-degrees, we have slept in it down to 13. The bag, by itself, is not very warm at that temperature.
I got in the bag, tried to zip it and the zipper tore immediately.
Unfortunately the workmanship was more than a little upsetting, even for that price. However, I used this bag two nights last weekend and found it was too cold on its own—lowest temp was 51 degrees each of those nights. I was in a large tent (admittedly, a smaller tent would have been better) with one other person. I had to add a fleece sleeping bag for more insulation.