I love my electric blanket. The warmth it provides makes me want to never come out. If I didn't have central heat, I know I'd stay in bed longer. We are not meant to lay around excessively so I have to push those covers off and get moving.
I think this is why a lot of people don't attend church. Leaving the comfort of our homes on our day off takes effort and discipline. We expect God to be there for our good, but we also expect our excuses to be ample for Him.
Your example of church attendance is a witness to others. Is church important to you on a regular basis or is it on a crisis scheduled event? Belonging to a church family provides the warmth of fellowship, regardless of the weather.