Medela electric Pump

Arti

How to clean electric pump? I'm using Medela swing maxi pump. Right now, I clean the pump(bottle, flange) with soapy water and then sterilize it. After each use. Is there any other way to do it. I find it difficult to clean at the middle of the night as I just want to pump the overflow of milk and sleep as since few days my baby is finally sleeping at night( not more than 4 hours in one stretch).