Sleeping bags are a very useful item to have around, whether you're an avid camper or traveler or you just want a spare bedding option for guests.
There are many different kinds of sleep bags available to buy and the type you choose will depend on your budget and how you will be using it.
Backpackers and anyone who will be packing and carrying their sleeping bag will want to look for an ultra light variety that packs down small.
Down bags are great for this and they also offer incredible warmth.
You should also choose mummy shaped sleep bags rather than the standard rectangular shape to eliminate any extra weight that you don't need.
For guests and trips away with your partner, you might want to consider buying a double sleeping bag.
These bags will comfortably fit two people and are usually extra cozy with a soft lining to give you the comforts of home.
This can make them rather heavy and bulky although there are also small and light versions available for backpackers.
You should pay close attention to the temperature rating of the bag you buy if you will be using it outdoors.
Different models are suitable for use in different temperatures and if you're sleeping in cold weather you'll probably need to pay a little extra for a warm sleeping bag.
If you'll be staying indoors or in hot countries then a summer weight bag will be sufficient.
You should also buy a liner to protect the inside of your bag from dirt and sweat and give an extra cozy layer for cold conditions.
You can buy these made from cotton or silk or even make your own from a bed sheet by folding it in half and sewing the edges together.