Materials, support, washability and durability: what separates a genuinely good dog bed from an expensive cushion. Comfort is individual Age, size, sleeping position and temperature all matter. A young curled-up terrier and an older large dog with stiff joints may need very different beds. Support and construction Good foam, stable edges and a base that does not collapse quickly can justify paying more, particularly for heavier or older dogs. Washability is non-negotiable Rem