Storage bed without mattress
You can purchase a storage bed without a mattress if you do not need or want a brand-new mattress to go with the new storage bed that you have recently bought. There are plenty of storage bed options that will not make you buy a new mattress if you do not want to so that you do not buy a mattress that you may already have or may not need.
There are several types of beds that come with mattresses and several storage beds that do not come with mattresses if you do not want them. However, make sure that you have the correct size mattress available for your new storage bed.
If you bought a double size storage bed, then you will need a double size mattress to go with it. If you have a single mattress for your new double size storage bed then it will fit, but it will affect your quality of sleep since the mattress will move around.
If you plan on purchasing a trundle bed, then you will be able to store an extra mattress if you want to. This will make it easier if you plan on buying another mattress for when a guest comes over and you do not have another bed to use.
Buying a storage bed without a mattress works out cheaper, but if you do not have a mattress, it is best to purchase a mattress along with the bed frame, because sleeping on a mattress that is no good will cause more harm than good to your health and sleep.