As you will all be aware its taken a bit of a cold turn in the UK and I find the mornings to be particularly cold. Basically my Guineapigs have an indoor set up in the upstairs room. They have towel as bedding and have 3 snuggle beds /houses the door is always closed and the window to keep heat in . But I'm still worried about it being a bit chilly for them. Should I take any extra steps by maybe putting a portable heater in or buying them some heat pads maybe as I worry they are cold 