Memory Foam Mattress Topper 4 Inch California King

Memory foam mattress toppers add a comfort layer to existing beds, relieving pressure points and improving sleep quality. They're popular with budget-conscious shoppers, back-pain sufferers, and anyone refreshing an aging mattress. Key specs to compare include size (twin, queen, double, kingsize), foam density, cooling features like gel infusion, and whether a washable cover is included. A gel-infused kingsize topper offers cooling comfort for larger beds, while a budget-friendly queen pad delivers pressure relief at an entry-level price. For back pain specifically, a double topper with a washable cover combines support with easy maintenance. Match the topper size exactly to your mattress for the best fit.