There are many different ways to hide safes of all different sizes. The typically seen way of hiding home safes is within the floorboards of your home if they have the space beneath them. Smaller items that you want to hide in a hidden safe like your phone, may be able to fit into a book safe which you can keep on your bookshelf, safe and protected from thieves. If you are planning on hiding and protecting larger items in a bigger safe when buying a bed, buying one that has the mattress lift up means you can hide the safe underneath your mattress to keep your belongings out of sight.