I'm backpacking thru Nepal- what should I bring?

My main question is about weather/temp: what kind of clothes should I bring? Thin layers no doubt, but is it going to be cold in October/November? I'll be doing some trekking, but not trying to climb any serious peaks or anything....

And how bout sleeping- will it be very cold at night? can I just bring a pad and blanket? or will I need a very warm sleeping bag...

Can I just bring a tent and camp as I go? I'm on budget and am perfectly comfortable living 'bum style' where ever it's ok to do so- I'm not into frills and am happy playing in the dirt.

Thanks for all or any advice you can give me. Please dont comment if you've never been there and are just guessing ;p
Additional Details
My main question is about weather/temp: what kind of clothes should I bring? Thin layers no doubt, but is it going to be cold in October/November? I'll be doing some trekking, but not trying to climb any serious peaks or anything....

And how bout sleeping- will it be very cold at night? can I just bring a pad and blanket? or will I need a very warm sleeping bag...

Can I just bring a tent and camp as I go? I'm on budget and am perfectly comfortable living 'bum style' where ever it's ok to do so- I'm not into frills and am happy playing in the dirt.

Thanks for all or any advice you can give me. Please dont comment if you've never been there and are just guessing ;p

I already know I'm going in Oct and Nov so I'm really only interested in info about this time. Hiring a guide is also not an option or my style so info about that wouldn't be as helpful... thank you regardless :)