There is no point in buying a bed for your dog yet it cannot feel comfortable when sleeping on it. It must have enough space for turning and long enough to accommodate its size. That is what will guarantee comfort to the dog in addition to choosing the right mattress. Dogs have orthopedic needs and this can be well captured by the manufacturers' specifications. Make sure you have settled for a manufacturer who fulfills that and it's in relation to quality of the material. They should be virgin and durable enough especially on the inside part. Memory foam is one of the recommended materials because it lasts for longer periods before wearing out, offers maximum cushion to the dog as well as improving support.
Another interesting thing with this material is that it can react to the weight and temperature of the dog's body. This simply means that the material will become stiff as you want or even stronger if that is what you want it to be. It is very flexible and easy to customize as per the dog's needs. On the quality aspect, you will realize that orthopedic memory foam dog beds come in many grades which denote different quality levels. Your attention should be drawn to that in making sure you have settled for the right grade whose quality is unquestionable. The grading is denoted using €pounds€ so the higher the €pounds€ the higher the quality and vice versa.
Bear in mind that you will get what you have paid for and that says a lot concerning the quality of bed you buy for your dog. You have to spend a lot of money in getting the desired quality so never compromised that just because you want to save costs. Lastly, take a look at the different types of orthopedic memory foam dog beds before settling on one. They are many in the market and comparison will help you make an informed choice.