Hofish 3 Inches Twin Gel Infused Memory Foam Mattress Topper. ?Excellent ventilation? ventilated design improves airflow for a more comfortable sleep Climate ?Gel infused? memory foam which is infused with Gel works really well when it comes to heat retention. For hot sleepers, The topper will have kinda of warm feeling. Adding a cooling sheet or reducing the room temperature could minimize the warm feeling. ?Comfort enhanced? special memory foam formula is extremely soft, airy and responsive, which enhance the comfort and Quality of your sleep ?Smartly shipped? Our mattress toppers are efficiently compressed, rolled and shipped in a box conveniently to your door ?Two options? There are two thickness for these topper. (3" Or 2" ). 3 inches offers more cushion than 2 inches. For Sleeper who do not like "sinking? fell, 2 inches topper would be a good choice.