Naturehike - ULG400

I'm looking for a "perfect" sub 800g sleeping bag which will be comfortable in +0°C undressed and down to -4°C dressed. I'm a cold sleeper 185cm skinny guy, sleep in all positions and turn a lot. I currently have a Naturehike ULG400 sleeping bag. was advertised as -4° comfort, 800fp, 400g down, but these are "chinese ratings" (doesn't look too lofty and I get cold in it at +2°C on a warm pad). Should I get a 0° comfort rated bag or should I go lower? Its intended for 1 week long trips, 3 seasons, mostly in Europe (up to 2.5km altitude), or northern countries at summer such as iceland, greenland. The bags I'm considering: * Western mountaineering ultralite (EN rated -4°C). This is my 1st choice since a local store carries it. But it is on the heavier side, and I've read that they might be not a best choice for a very active sleeper due to down migration in horizontal buffles. Or is it a non issue? * WM megalite (EN rated to 0°C) but only \~350g down which is less than my current bag... * Cumulus X-Lite 400 customised with 450g down fill (rated at -2°C). I've read they are quite tight, won't it prevent me from turning inside the bag ? * Cumulus Lite line 400 customised with 490g down (rated at 0°C). * Sea to summit spark 15 (EN rated -1.6°C). On sale now. Won't it be too tight? * Feathered freinds - one of their 20F bags, but which version? there are 3 different widths...

They are well made knockoffs on Amazon. I have a naturehike 400 sleeping bag and I love it. My buddy has a Hubba clone and it’s fantastically built. Good starter stuff.

I use a naturehike down sleeping bag if it’s above 45 degrees at night. Works as a quilt on warmer nights and a sleeping bag on cooler nights. 

My first budget backpacking sleeping bag was a Kelty Cosmic 20. It was way heavier than I expected. A friend let me use their Naturehike Sleeping bag (not sure on specific type) and it was way lighter and more compact. I still use the Kelty for car camping, but it no longer goes on backpacking trips with me. My next upgrade will be an ultralight quilt. I got a used Gossamer Gear pack 55L off eBay that I love! I started with a Naturehike CloudUp 2 tent which was fine for the price, I have since upgraded to a Tarptent Double Rainbow (also used on eBay). Depending on the distance and weather, I will still take the Naturehike tent sometimes even though it is heavier. I like that you can use it without the rain fly on a nice night and just have the mesh top so I can see the trees and stars. My first pad was a Klymit pad from Amazon for $40. It works fine for warm weather. I upgraded to an Exped Duo 3R last year since I now usually backpack with my daughter or girlfriend and a 2P pad seemed easier. I also have two Nemo Switchback pads that I will carry on some hikes. I put them under my pad in the tent to prevent any punctures in my Exped and to give a little more insulation on colder nights. They are also great to pull out and use as a pad around camp when we are lounging before going to bed. Unfortunately, UL gear and spending an arm and leg kinda go hand in hand. All of my inexpensive gear was great to get me started, but over the last few years, I have been replacing them with lower weight, higher quality, and hence more expensive options. Along with being heavier, the cheaper stuff is just, cheaper. The biggest thing I have noticed is the zippers don't glide as easy on my cheap gear. This can be a huge annoyance when trying to zip your tent or bag.