Using this Twin Size Gel Memory Foam Mattress Topper is a breeze. Once you receive it, it's compressed for easy transport. Unpackage it and give it 1 - 2 hours to start expanding before you use it. For maximum expansion, wait 24 hours. Then, simply place it on your Twin bed. It's designed to relieve pressure points and give you full - body support, so you can sleep better. If you're sharing the bed, it absorbs movement to reduce disruptions. To keep it clean, just use a vacuum with a soft brush attachment to remove dirt. It also helps prevent the growth of airborne irritants, which is great for your health. And don't worry about any complicated assembly; it doesn't require any. Remember, it has a cooling effect to keep you comfortable during sleep and meets fire - safety ratings. Enjoy your restful nights with this amazing mattress topper!