Merax&reg; 2 Inch Gel Infused Memory Foam Mattress Topper Mattress Pad, 5 Year Warranty, Twin Size Not too thin, not too thick, this 2" gel foam mattress topper evenly distributes body weight for the ultimate in all-night comfort Breathable material won't overheat and is odor-neutralized for a fresh scent Improves the comfort and support of any mattress Pressure point relief design conforms to head and shoulders, providing spinal alignment Fits standard twin size mattress (75*39*2 inch)