It isn't that frequently that we have to change our mattress but it is something that we need to do. When the situation does arise we need to know what we should be thinking about so that we are confident in making the right decisions. It may sound like a hassle but will be worth it in the end.
You need to decide on your budget. You will have to settle for a foam mattress if you can't afford anything more. Look at getting a pocket sprung mattress if your budget is higher. Pocket sprung mattresses are much better for you and will provide you with a better sleep. I believe they are worth the extra.
People are more likely to go for a foam mattress when buying a cot bed mattress. They think this way because it won't be long before the child grows out of the bed. The problem with that is that the child will shape it as they are sleeping, so if they want to move into another position then they might roll back into the original. That is why it is still worthwhile to get a sprung cot bed mattress.
You should be changing the mattresses at the right periods. For pocket sprung mattresses this will be every ten years. It is crucial that you do this as even the best quality mattresses won't be supporting you properly as you sleep.
If you are after king size mattresses then you will have to pay more money. This is because the size will affect the price. The larger the mattress the more you will have to pay. You may see this an opportunity to downsize away from king size mattresses but then you will have to buy a whole new set of sheets.
When you are buying a mattress there are a number of factors that you need to weigh up. Don't get too disheartened... you will only need to do this every 10 years or so!
