I used to, but don't anymore. TMI, but my first one was heated because I thought we needed it. Second one wasn't (we didn't have a hot water tap near the toilet

I used to, but don't anymore. TMI, but my first one was heated because I thought we needed it. Second one wasn't (we didn't have a hot water tap near the toilet) and it's turned out to be fine. You get used to it. YMMV though, if your area has super cold tap water like Colorado it may not be tolerable.