Was working in a loft yesterday with my overalls on,took off my shirt first mind.It felt very warm in the shop downstaris but after an hour in the loft which was sweltering it felt like being in a fridge when i came back down the ladder.I worked 25 hours from early Tuesday until 8am Wednesday but had no problems getting to sleep when i got home with heat or light through the windows,30 seconds i was gone!