Get this Toilet Seat Sensor Night LED Light to stop the bathroom light waking up the other half in the middle of the night. The light sensors detect you entering the bathroom, lights up the Bowl to enable you to do the business, then automatically turns off after you leave the room. Takes 3 AAA+ batteries,INCLUDED. The LED light comes in 8 different colours, or you can have it alternate between all 8. Simple to stick onto bowl like a bowl cleaner.