Spare soft reversible cotton mat is a convenient way to replace a mat in the middle of the night to quickly return to bed. Fast Detect Technology cotton mat sensor has large urine detection area that detects the first drop of urine and alert the user to use the bathroom. The bed mat is 30″ x 24″ and can withstand a capacity of up to 400 lbs. Includes 10-foot-long cord with sensitivity switch.