I have Old English Sheepdogs and for the price, these are good beds that last for about a year and then they start to break down with heavier dogs.  For the pirce you can replace them every year if you can find availability.  The foam is certipur from the USA, so, it is safe and has no harmful chemicals that will posion your pet.  The height of 4" is great for older pets that have mobility issues.  The covers are easy wash and dry.  I keep these at all times in addition to the much more expensive Big Barker pet beds.  My old guys prefer these at times because of the ease of getting on them.