I have just started hammock camping in the last 6 months. I have a WBBB double layer. I have been useing a walmart blue pad on the 2 trips I have done so far with the hammock. Well the end of oct. we are doing the Georgia AT section for a week. Temp will be colder than what I am use to. What I am wondering is do I need an underquilt? and What is a good underquilt for the money? and do I still need the blue pad with and UQ? Thanks