Hammock

Stand

The stand forms a half circle. There are three segments so it can fold into a more compact form.

Hammock

Rope hammock, not sure what material to use. I'd like the wood supports to be curved a bit so it forms a nice cradle.

Umbrella

It should have a lightweight umbrella for sun. Not sure what material to make the umbrella from, the ribs can be wood.

Look at some designs, there's some cool ones. I like the umbrellas that use an arc over the hammock with a few ribs coming off to provide full shade.

Overkill

Rocker

Add a clock-work rocking mechanism.

Water

Make the whole structure strong enough to hold a few dozen gallons of water an combine with a solar heater to keep at a fixed temperature for a hammock bath.