I've done a few bike packing trips with a bivy. it's not fancy, just a surplus army issued gortex bivy. super basic, no bug net. however, the last couple of times I used it, the bugs had me for dinner, midnight snack, and breakfast. I need something a little better for next time, either a lighter bivy with a bugnet, or a hammock. I don't want to get a tent because they're usually heavy, and harder to setup. Tarp tents are too much work, I'd rather have a bivy.

That said, there are pros and cons of both. But having no experience with the hammock, or fancier bivies, I'm hoping others can fill me in on their experiences

pros of bivy:
lighter than hammock, but not by much.
more versatile, set it up anywhere
super quick to setup/pack

pros of hammocks:
supposedly more comfortable (this is huge for me, because I want good quality sleep)
can be used as a ground bivy if needed (not sure how well this works out)

Right now, I'm leaning towards getting a good quality hammock (dutch half zip double layer), which will run me about $200, but it will be a kickass setup. Before I commit to it, I just want to get a poll from people who've done both, and which one they think is better.