If you are going to be taking a camping trip soon - either because you and your family are wanting to spend some time together, or because your son recently joined the boy scouts, or because you are planning to do a bit of backpacking - one thing that will be important for you to have is a sleeping bag; one thing you may not have realized, however, is that there are a vast number of different options to choose from - and "the right sleeping bag for you" will depend on a number of factors.
The temperature grade you are going to need for the sleeping bag in question is the first thing you are going to want to think about; if you plan to take a simple camping trip in the middle of a warm month, and do not envision yourself taking many subsequent, spontaneous camping trips down the road, you will be perfectly fine picking up one that is rated at 40 degrees (or even higher), as you will probably never have need for a more heavy-duty one; on the other hand, if you are going in the fall or spring, when the weather at night might be cold, or if you can see yourself taking one such trip in the future, it is better to invest a little bit of extra money in one that is rated for lower temperatures! Another big factor will be weight - and for this, it will be necessary for you to take a look at what you will be using the sleeping bag for; generally speaking, the more lightweight one is, the more money you are going to have to spend on it - but if you are not going to be backpacking, and will instead be camping out of your car (when weight matters very little), there will be no reason to spend the big bucks on a super lightweight sleeping bag.
And of course, durability will be worth looking at closely; after all, there is always a chance you will only use this new purchase of yours a handful of times - but there is also a chance you will want to go camping over and over again, and it will certainly cost you less to purchase a single, good sleeping bag than to put yourself in a position where you end up purchasing several less-expensive ones.
Finally, you should be aware of the fact that you can easily shop for sleeping bags online - and in fact, this will make it easy for you to get the best selection possible, as there is a lot more available online than simply what you can find in stores!