The Jenny cot isn't really designed for being a bed-side cot, but I'll go and get some measurements for you...
With the side dropped down, the top of the side is 78cm up from the ground. My bed (divan/mattress) appears to be 58cm tall, so assuming yours is similar you'd have 20cm or so of side bar rising up between you and the cot if you pulled it next to the bed with the side down.
The cot mattress can be set on three different levels, the top level would mean a gap of only a few cm between where the baby is and the side of the cot when dropped down, but they'd be a bit higher than you.
The middle setting I think would pretty much line up the mattress with the big bed. And I guess when putting the cot together you could always omit fitting the drop down side entirely for as long as the cot was next to the bed, and add it in later when it was needed!
However I'm not sure whether it'd be safe to have such an arrangement, I'm sure someone more knowledgable than me will come along and contribute regarding that! My bedroom isn't big enough to fit a cot beside the bed, so I didn't really have that concern when planning. I've gone for a moses basket and stand next to the bed initially.
Hee, and I wouldn't think of it as copying so much as following a recommendation. Personally, I'm just glad that my research is helpful to someone! Other people on MN have been so helpful to me when I've been getting everything sorted, it's nice to pass on some of the karma to someone else!