There are a whole bunch of different materials that get used for sleeping bag liners, but micro fleece is definitely one of the more comfortable and warm of the bunch. Fleece is very soft, and is thus a great material to sleep against at night, unlike the interior of most sleeping bags, which many people find uncomfortable and clingy. A micro fleece sleeping bag liner will also add a significant amount of warmth, and turn a summer sleeping bag in to a winter sleeping bag with ease.
Micro Fleece Sleeping Bag LinerThings to look for when buying a micro fleece sleeping bag liner.
- Shape – If you have a rectangular shaped sleeping bag then you will want to buy a rectangular shaped micro fleece sleeping bag liner. Trying to stuff a rectangular liner in to a mummy shaped sleeping bag, for instance, will result in a creased and uncomfortable sleeping bag liner.
- Hood – If you really want to stay warm then it would be a good idea to get a sleeping bag liner with a hood. You lose a lot of heat from your head, which is precisely why most sleeping bags have a hood to begin with, and a fleece hood will only help to capture and reflect more heat. Plus it will great to sleep against.
Best Micro Fleece Sleeping Bag LinerSome of the very best micro fleece sleeping bag liners.
- Kelty Fleece Sleeping Bag Liner - This is a rectangular sleeping bag liner suited well enough for car camping, but not for anything where you would be carrying the liner. With 10 to 15 degrees of warmth added for 2 pounds 14 ounces, or 1.3 kilograms, you would be better off just getting a warmer sleeping bag. But for car camping with a rectangular sleeping bag, it's a good choice.
- Sea to Summit Toaster Microfleece Mummy Liner - When it comes to the limited selection of micro fleece sleeping bag liners, the Toaster is the stand out choice. It's mummy shaped, and is the only fleece liner that is actually specifically micro fleece. There's no exact data on just how much warmth you can expect, but it's sure to be in the double digits at the very least. A contoured head with drawcord will certainly help keep you warm, at least. At 1 pound 4 ounces, or 560 grams it's not the lightest sleeping bag liner in the world, but it's not bad either.
- Sea to Summit Thermolite Reactor Extreme - If you're looking to add warmth to your sleeping bag and assumed that fleece was the best choice, you would be wrong. Thermolite is a similar fabric that does a far better job of adding warmth to your sleeping bag. For 14 ounces, or 390 grams you get an impressive 25 degrees of warmth, which is a far better warmth to weight ratio than you could expect from fleece. So if you want to stay warm, consider thermolite over fleece.