Hi and welcome to the forum, getting towards the start of the cooler months now so it isn't just a case of jumping into a hammock, for a decent warm nights sleep you will need either an insulated inflatable mat or an underquilt as protection from the cold underside, plenty to choose from and depending on how hot or not you sleep the cost can vary a lot, for entry level a DD Hammocks ( or similar ) hammock and underquilt and they also do a Jura sleeping bag, I can't comment on the underquilt and bag but I have had a few of their hammocks and never had a problem.