Rooms on your cruise are called a "stateroom" and will be similar to a hotel room. You will have a bed, desk, TV, safe, closet and an en-suite bathroom, depending on the size of your stateroom you may have either a shower or a bath. All cruise lines offer basic toiletries in your en-suite bathroom (shampoo, shower gel, soap and conditioner) and hairdyers are normally located in your cabin desk not the bathroom.
Most staterooms include two twin beds that can be pushed together to form a king- or queen-size bed.