>>2794209You need either a sleeping pad or a cot. Most hot tents are floorless and even the biggest camping stove won't burn for longer than 3-4 hours. Realistically and in most conditions, the stove won't be producing significant heat overnight if you don't feed it every 2 hours for the larger models, 45 minutes for the backpacking ones.
I don't mind getting up and stoking my fire, as it's part of the experience of winter camping for me, but if you plan on sleeping through the night I'd recommend the warmest sleeping bag you can get and a sleeping pad/mattress with an R value of at least 5. Along with sticking a hot water bottle in your bag and solid layers to keep you warm.
