Buying a bed is first about buying a mattress and deciding on the sort of mattress you’d want for your bed. Usually, this boils down to whether or not you can afford a king size bed, because for most people, if you can afford to do so, you’d get as much space as you can. A king sized mattress will itself vary. For instance, when it comes to kings, there’s the California king variety of beds. This sized mattress is slightly wider than the standard king sized mattress. But if you’re, say, less than 5 foot 10 inches tall, the difference may seem a bit marginal. Another thing to consider about a king sized bed is the weight. And you want to figure out how far you’ll sink into a mattress, when you buy one. This sinking factor is something that really ticks a few people off, so it’s something worth asking an online retailer about before you have your card charged.