A flexible base that holds your can, bottle, or tumbler steady right in the hang — for the dawn coffee you don't want to unzip the quilt for, the Saturday afternoon read that shouldn't need a dismount, and the porch pour that's tired of riding your sternum.
See it at steadilabs.com →Free shipping · 30 days to change your mind · Molded in small runs in Orange, California
Will your cup fit? Grab a sticky note — the 10-second test ↓

The situation
You found the trees, got the angle right, and settled into the diagonal lay — and now every surface in reach is grass, dirt, your own fabric, or your own chest. None of it holds a drink.
Ripstop nylon or a quilted rope bed, pulled taut into a curve that runs downhill from every direction, straight to you. Set a can on the fabric beside you and it doesn't stay beside you — on hammock forums, the fabric itself is where people say most of their spills started.
The default rest, and it moves on its own — rising and falling with every breath, tilting with every shift toward the diagonal. Getting in and getting back out are the two moments hammock threads keep naming as the ones no cup holder has solved.
Twelve to eighteen inches down, on grass that only sits a can upright by accident or campsite dirt that wasn't level to begin with. Reaching for it means leaning your torso over the edge — and a hung hammock rotates around its long axis, so the lean toward the drink is the same motion that tips you toward it.
Domed or ribbed, slick with its own condensation, and parked wherever it landed — rarely inside reach once you're actually settled. One camper's own account describes wind strong enough to shift a water-weighted cooler entirely.
Powder-coated steel, curved, running past at ankle height with no flat face anywhere on it — which is exactly why one hammock-stand maker sells a bolt-on cup holder just to give the frame a shelf it doesn't have on its own.
None of it stops the afternoon. It's the toll on the best seat in the yard, collected one dismount, one lean, one spill at a time.
You know the moment
Still zipped into the underquilt with first light coming through the bug net, hands wrapped around a hot drink because there's nowhere else for it to go. Hammock campers hang the whole brew kit from the ridgeline for exactly this reason — one calls a hot drink passed in through the netting the best luxury camping has to offer.
The sweating glass has been riding your sternum for twenty minutes, rising and falling with your breathing — until the dog clips the edge of the hammock on his way past and the whole rig sways.
You swing a leg out to go get another one, the whole bed rolls with the shift in weight, and the can parked by your hip goes over into the grass before your foot even lands.
It's down in the grass where you left it. You roll toward the edge, fingertips just grazing the rim — and the hammock rotates right along with you, because leaning toward the ground and tipping toward it turn out to be the same move.
Breeze picking up, the koozied can is back on the cooler lid, sliding a little on its own condensation, and you're doing the math on whether the next sip is worth getting up for.
What you get
The wide flexible base spreads out instead of concentrating into a point, so it doesn't slide toward the low spot the way anything else set on the fabric does. Breathe, shift toward the diagonal, let the whole bed sway — the base moves with it and the drink settles back level.
The koozied can, the lidded bottle, the enamel camp cup, the 40 oz tumbler — whatever's in your hand when you climb in drops through the fins and gets gripped by its bottom inch. No ridgeline mouth or brand-specific slot deciding what's allowed.
One piece of flexible material, nothing to hang, bolt, or knot on. It rests on the fabric beside you, on your chest, on the ground, or on the cooler lid — gathered-end or spreader-bar, tree-hung or stand-mounted, campsite or backyard.
The fit test
A square sticky note: 3 inches, exactly.
The standard square is exactly 3 inches on a side — a fact about sticky notes, and it happens to double as the outer limit of what fits.
The hammock itself won't give you a place to check a base once you're settled, so do it on the ground first: set the cup or bottle you're actually bringing directly on the note and look at the bottom, not the rim or the shoulder. Tumblers taper and rims flare — the base is the only part a fin ever meets.
Base fits inside the square? It settles in. Hangs past the edges? Too wide. A little puck stranded in the middle — under about 2 inches? Too narrow to grip.
No ruler at the campsite, no gear-forum thread, no guessing once you're already strung up between the trees. One sticky note before you climb in, and you already know.
Will it fit my cup
The rule fits on a sticky note: a container base about 2 to 3 inches across settles in. Every verdict below follows from that one line.
There's a floor as well as a ceiling — under about 2 inches, the base sits too loose to grip. The handled coffee mug is the honest exception: the base itself is fine, but the handle lands exactly where a fin needs to close, the same problem that trips up the ridgeline caddies too.
How it works
A hung hammock has no flat spot anywhere — anything set on it either finds the low point or gets put somewhere else entirely. The wide flexible base lies across the curve instead of concentrating its weight into a spot that slides.
Flexible fins hold the drink from the sides by its bottom inch, so a sway, a shift toward the diagonal, or a graze from the dog doesn't rattle it loose.
The hammock rocks, you adjust position, someone leans in from outside the rig — the base flexes with whatever's under it and brings the drink back level.
Map the hang
It isn't clumsiness. Everything within reach of a hung hammock is curved, hanging, sloped, or attached to a body that's breathing.
Pulled taut, the fabric holds no flat plane at all — it's a curve from edge to center by design. Anything with a narrow base rolls to the lowest point on contact, and camping hammocks make it worse: parachute-style ripstop is slicker than the rope or quilted beds of a backyard rig.
Rises and falls with every breath, rotates with every shift toward the diagonal lay, and is mechanically part of the same swinging system as the rest of the bed — so anything balanced there inherits both the breathing and the sway.
Twelve to eighteen inches below a seated hip — grass holds a can on a few blade-tips rather than solid ground, campsite dirt is rooty and rarely level, and evening dew turns whatever friction was there into a film.
Domed or ribbed by design — the shape sheds rainwater, not stability — and condensation turns the surface slick within minutes. It isn't anchored, so a gust or a bumped elbow can shift it, and everything on it goes wherever it goes.
A round steel tube has no flat face by cross-section, and it curves along its own length too — there isn't one point on it where a drink could rest without rolling off, only the ground underneath or the fabric above.
Versus what you do now
An Oxford-nylon sleeve hung by Prusik knots, built for a camping hammock's structural ridgeline — a line most backyard rope, spreader-bar, and stand rigs simply don't have. What's left dangles at face level from a cord that moves with every shift in the bed, so every rock in the hammock telegraphs straight into the cup, and a soft fabric pocket is a strange home for anything open.
Bolts to one brand's stand arm, behind your head, and the maker's own rating tops out at one full cup. Between two trees — which is most hammocks — there's no arm to bolt it to at all, and it has to come back off before the stand folds down for storage.
An entire hobbyist genre on the maker forums exists to solve this, which is its own review of what's on shelves. Even the printed versions draw the same two complaints in the comments: whether the plastic survives a summer afternoon in direct sun, and that the clip still doesn't survive the actual climbing in and out.
Marketed as the convenient built-in answer, but a pocket stitched to the fabric tilts with the fabric — whatever's riding in it leans exactly the way you lean, which is the same failure the pocket was supposed to fix.
The default habit, not a purchase — domed, sweating, parked wherever it landed, and evicted the moment anyone opens the lid for ice.
Before you buy
That's the whole reason the base is wide instead of narrow. A hung hammock has no flat spot, so anything narrow slides straight to the low point — you. The wide flexible footprint spreads across the curve instead, and the fins keep the drink from rattling loose as the bed sways. Rock it off level and it settles back.
Spreader-bars are the more tip-prone family — the bars hold the fabric taut and raise the whole bed's center of balance, which is exactly why the classic backyard hammock has a reputation for dumping people. This resists tipping on its own footing no matter which hammock it's riding in, but it can't change what the hammock itself does — that part's still on you and the bars.
Measure the base, not the rim. A container base about 2 to 3 inches across settles in — the 40 oz Stanley fits. Handled mugs don't; the handle sits right where a fin needs to grip.
No. Nothing ties to the ridgeline, bolts to a stand arm, or clips to a spreader bar. It rests on top of whatever's under it — the fabric, your chest, the ground, the cooler lid — so it works the same whether you're strung between two trees or set up on a stand.
Yes — it has no allegiance to either. Gathered-end or spreader-bar, hung from tree straps or set up on a steel frame, the base doesn't care what's holding the hammock up, only what's under it in the moment.
That's one of the better cases for it. Rest it on your chest, on the ground beside the hammock, or wherever else you can reach from inside the cocoon, and a hot drink doesn't have to ride in your hands the whole time or get passed in through the bug net.
A graze from a passing dog or kid is exactly the kind of bump the fins are built to shrug off — it resists tipping and settles back when the bed sways. It isn't magic, so a hard direct hit is still a hard direct hit, but the everyday clip-the-edge bump is the job it's shaped for.
Rinse it off or run it through the dishwasher. It's one piece of flexible material with nothing to come apart, so grass, dirt, or campsite dust wipes off in seconds.
It's called the Steadi, molded in small runs in Orange, California by Steadi Labs — veteran-founded and patent pending. Every order ships free from steadilabs.com, with 30 days to send it back if it doesn't earn a permanent spot in your hang.
Who makes it
The maker is Steadi Labs, a small veteran-founded company in Orange, California. It's injection molded — the mold, the material, and the color runs all sit within about three and a half miles of the shop, and every batch is molded there in small runs. The people who make it are the same people who answer hello@steadilabs.com.
Use it for a month. If it doesn't do what this page says, email hello@steadilabs.com and it gets made right — no forms, no fight.
Veteran-founded · Patent pending · Made in Orange, California
The drink stands steady right there in the hang — on the fabric, on your chest, on the ground below — and the only reason left to get up is that you're finished relaxing.
Get yours at steadilabs.com →Checkout is on steadilabs.com — Steadi Labs is the company that makes it.