—A base for the flat thing beside the hammock
Kammok is a hammock company, and it sells one. Their own description of the Swiftlet Cup Holder: it “easily fastens to either arm on your Swiftlet.” The Swiftlet is their portable stand, listed at $339.95 on kammok.com, 4 September 2026. The holder is thirty dollars. The reason the holder can exist is three hundred and forty.
Between two trees there is no arm. So this is not a fitting for anything. It is a 5.2″ moulded base for the flat thing already next to you — the cooler lid, the deck board, the picnic table, the patch of dirt by the tree — and for the thirty seconds when you are getting in and both hands are busy.
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—Read this before anything else
The useful thing to know is that this is not an oversight. Somebody thought of it, built it, and sells it right now — twice. In both cases the drink holder is a fitting, the way the cup holder in a car is a fitting for the dashboard. And a fitting needs something to be fitted to.
anymaka, the other one, files its Quick-install Cup Holder in a collection its own site navigation labels, in those words, “Accessories for Hammock Stand.” Their “Full Pack” bundle is described on their page as “Hammock Stand, Double Hammock, Cup Holder, and Canopy Kit included.”
$29.95
needs the stand
$23.96 that day. Tool-free, adjustable, a key hook, and Kammok says it takes a 32 oz Nalgene. It fastens to a stand arm.
$339.95
is the hardware
$299.99 that day. Kammok’s own spec table gives 12.9 lb short-bar, 15.25 lb long-bar, 17.9 lb packed, 300 lb capacity.
$49.00
needs their stand
$29.00 that day, filed under “Accessories for Hammock Stand.” Their stand is $289.00 the same day.
$14.95
nothing to fasten to
A 5.2″ moulded base, 3.6 ounces, that the drink stands in. It goes on the flat thing you already have out there.
Two companies, same architecture, and the holder is never the expensive part. The mount is. Which is the whole answer to why your hang has nothing: you are tied to two trees with a strap, and there is no arm. There never was one to design against.
Sources: kammok.com (Swiftlet Cup Holder, Swiftlet Portable Hammock Stand) and anymaka.com (Quick-install Cup Holder, Hammock Stand, Full Pack) — each seller’s own product pages and list and same-day prices. Fetched 4 September 2026.
—The tell that this is real
The $16 tray is the sharpest artifact of the lot. Bliss says it “easily attaches to the side of the Gravity Free Recliner.” A zero-gravity recliner is conceptually a hammock — it suspends you in fabric between two supports and it rocks. It gets two cup holders and a tablet slot for sixteen dollars, because there is a steel tube beside your elbow that a clip can bite.
The same blank space runs down the rest of the shelf. ENO’s feed carried 78 products that day: six strap SKUs, six tarps, three bug nets, quilts, a structural ridgeline, a gear loft, six stands topping out at a $699.95 ENOpod, an outdoor game and a dog collar. A scan of every title for cup, drink, beverage, bottle, mug or can returned nothing. Vivere: 324 products, nothing. Pawleys Island, the South Carolina rope-hammock maker: fourteen accessories from a $179.99 Sunbrella pad down to $14.99 tree hooks, and nothing.
One company, both answers, in the same catalogue. The line between them is whether the product has a frame.
Sources: blisshammocks.com, eaglesnestoutfittersinc.com, vivereltd.com and pawleysislandhammocks.com — each store’s own live catalogue feed and product pages. Fetched 4 September 2026. Steadi Labs is not affiliated with any of them.
—Does it actually work
Somebody sits down beside a full can and it comes back level. The base is 5.2 inches across, so the drink has to lean a long way before it clears the edge of its own support. That is the entire mechanism, and there is nothing else going on.
Filmed on a couch cushion, indoors. Not on a hammock — and we are not going to edit it to imply otherwise, or cut it to a chime. A cushion is a soft, uneven surface, which is the honest test we have. Nothing on this page claims the drink rides on the hammock; see the limits below.
—Why nothing clips to a good hang
Read what a hammock maker actually tells you to do. Trek Light Gear’s hanging guide, on its own site: aim for “a 30 degree angle between the strap and the tree.” Set your sit height “around 18 inches. Chair height.” Find two trees “roughly 10 to 15 feet apart.” And then the instruction that decides everything: “Keep a nice loose curve. Your hammock should smile back at you.”
Every one of those makes the fabric worse as a shelf, on purpose. A deliberately loose curve is a curve, and its lowest point is wherever your mass is sitting. Shift, and the low point moves. Breathe, and it moves a little. Pull it tight instead and the same guide says it “cocoons you, stresses your anchors, and is less comfortable.”
The spec sheet says it again by omission. ENO’s DoubleNest, on ENO’s page the same day: $74.95, 9′6″ by 6′4″ of 70D nylon, 19 oz, rated 400 lb, hanging distance 9′2″ give or take 10 inches. Nowhere in that spec is a dimension describing a surface, because there isn’t one. There is a quantity of fabric and a distance between two trees.
So this does not try to be a shelf on the fabric. It is 5.2 inches of moulded base that goes on something flat and already still. Width is the mechanism: it puts a much broader footprint under the drink, so the drink’s centre of mass has to travel further sideways before it clears the edge of its support, and tipping takes a bigger tilt than it does on the drink’s own bottom. It resists tipping. It is not spill-proof.
Sources: treklightgear.com hanging guide · eaglesnestoutfittersinc.com DoubleNest product page. Fetched 4 September 2026.
—The object
Which is why it does not care whether you are gathered-end or spreader-bar, tree-hung or stand-mounted: it was never touching the hammock. There is also no elastic band and no foam pad inside it — the parts that stretch out and dry-rot on a thing that lives outside all summer are parts it does not have.
—What seats and what does not
The fins flex from 0.92″ to 3.15″ across the base, and that is the only number that decides it. Worth having whichever of these you end up buying: the ridgeline sleeve further down this page is 3 inches internal, and the folding side table’s two detachable holders are 3 inches each. Everything in this category is decided at about the same place.
Handled mugs do not seat. The handle lands exactly where the fins grip. Stemmed glasses do not seat either — a stem gives the fins nothing to find. Both are a straight no, and the dawn coffee in a camp mug with a handle is the one that costs.
Every width below comes from a published specification, not from us. Where a spec is uncertain, the answer says so.
A width across the bottom of the cup, in inches.
A standard sticky note is three inches square. Stand the cup you actually take out there on one before you order. Base inside the paper and it seats.
Anything that overhangs, or anything borderline — hello@steadilabs.com reaches a person, and the answer will be honest either way, including a no.
—Where it goes
The cooler lid you were already using. The deck board, the tailgate, the porch step, the picnic table, the arm of the chair nobody is in, a flat rock, or the patch of dirt by the tree once you have pressed a boot on it. All of them are still, and all of them are already there.
The moment it earns the fifteen dollars is getting in. Trek Light Gear’s own instruction is that you “sit down into a hammock, not climb up into one” — and either way, for a few seconds, both hands are busy and the drink has to be somewhere. Somewhere that is not wet grass, and not balanced on your chest.
Then it is there for the rest of it: the reach when you have settled, the book in one hand, the second one you did not want to get up for. Twelve colours, one per unit, which in a group hang is the fastest way to stop four people arguing about whose is whose.
—What everything else asks of you
Prices and specifications were looked up on 4 September 2026, not estimated. Every figure in the last column is the seller’s own published requirement, in their own catalogue.
| The product | Price | What it asks of your hang |
|---|---|---|
| Kammok Swiftlet Cup Holder | $29.95 · $23.96 that day | The Swiftlet stand, at $339.95. Kammok’s words: it “easily fastens to either arm on your Swiftlet.” Their page says it takes a 32 oz Nalgene — wider than this does. |
| anymaka Quick-install Cup Holder | $49.00 · $29.00 that day | Their stand, at $289.00. Filed on their own site under “Accessories for Hammock Stand.” |
| Onewind Hanging Drink Holder | $19.99 | A structural ridgeline. 43 g of Oxford nylon with a neoprene rim, 3″ internal by 4.3″ deep, riding on two prusik knots. Real, and genuinely tree-hung. |
| ENO Microtune Structural Ridgeline | $24.95 · $18.71 that day | The line the sleeve above needs, if your hang is two straps and nothing overhead. Either figure roughly doubles the cost of that fix. |
| Bliss Hammocks Folding Side Table | $45.00 | Level ground. 20″ cube open, folds to 26″×20″×3″, 6.6 lb, rated 40 lb, two detachable 3″ cup holders. On a deck or flat lawn it is the better answer. |
| Clamp-on rail cup holder (Camco 53093) | $15.99 MSRP at Fish307 | A rigid rail of ¾″ to 1¼″. ENO’s own guidance says the trees “should be at least 10 inches in diameter”; the Atlas strap is 9′ of webbing tapering 1.5″ to 0.75″ and is not rigid; a ridgeline is cord. Nothing here is in that size class. |
| The Hammock Cup Holder | $14.95 · four for $39.95, $9.99 each | A flat surface under the whole 5.2″ base. The cooler lid, the deck board, the picnic table, the ground. |
Price is not the argument, and we are not going to pretend it is. Every product in that table is a fair price for what it is. The argument is the last column. Every one of them starts by requiring something — a stand arm, a ridgeline, level ground, a rigid rail — and a mount needs something to mount to.
Four concessions, and every one of them can cost us the sale.
If you own a stand, buy the holder built for your stand’s arm. Kammok’s for a Swiftlet, anymaka’s for theirs. It is the only mount in this space that is engineered rather than improvised, and it exists precisely because the stand gave someone an arm to engineer against. If you run a structural ridgeline and your cup is under 3 inches, the Onewind at $19.99 is the honest answer and you can stop reading here. If you hang over a deck or a patio, buy the table — a 20-inch table beside a hammock hung at chair height is very nearly at hand height, and on level ground it beats anything on the floor. And we do not claim this works on the hammock. Not on the fabric, not on your chest — see the limits below, in full.
What is left over is a specific hang: strung between two trees on uneven ground, nothing overhead, no frame anywhere in the system. That is the one every catalogue above skips, and it is the common one.
Sources: kammok.com · anymaka.com · onewindoutdoors.com · eaglesnestoutfittersinc.com · blisshammocks.com · fish307.com (Camco 53093 listing). Prices and specifications fetched 4 September 2026 and current as of that date. Steadi Labs is not affiliated with any of them.
—Get one
Most people take two: one that lives in the hammock bag and one that stays out by the door. Free shipping on all of them, and 90 days to decide.
Checkout is handled by Steadi Labs — the company that makes The Hammock Cup Holder. Secure checkout at steadilabs.com. Free shipping on every order, and 90 days to change your mind, used is fine.
—From people who bought one
Verbatim, unedited, not filtered by rating. This is a slice of one product-wide corpus — reviews of the Steadi, not of this page. Nobody in it mentions a hammock, so none of them is going to tell you it works in one. They are here for the surfaces they do name out loud: a cooler, a bench, a wobbly patio table outside, a picnic blanket. The four-star is first because it says the thing a page like this should not bury.

★★★★★
Steadi- Just what I was looking for! I purchased these to use at our annual NASCAR race this month. They delivered beyond my expectations. Our seats are metal benches with a slight slope towards the back, making it impossible to set down any type of drink. We were able to use these for a 20oz bottle with a koozie on it as well as a slim can with an insulated Brumate on it! They worked perfect, holding our drinks on the bench & on our cooler. I highly recommend for sporting fans, boaters, outdoor adventures. Thanks for making these!
Holly J · June 2026Photo from the buyerPhoto from the buyerPhoto from the buyerPhoto from the buyerPhoto from the buyerPhoto from the buyerPhoto from the buyer
★★★★☆
not as steady as I would like but it is working just fine. It does slide a little. Overall it was a good purchase.
Randee Kirschbrown · August 2026
★★★★★
They are great! They work very well in keeping the soda cans from falling over and spilling on the bed & couch when the three Beagles and one Border Collie jump on or off. They also stay steady on the little wobbly patio table outside.
Susan Ilkenhans · May 2026
★★★★★
The design for this is amazing. Simple and highly effective. No longer worrying about knocking over my drink from the side table or setting down my drink on a picnic blanket.
Obsessed · July 2026
Sent in with their reviews. Tap any one to read it. Different rooms, different drinks, different colours — none of them staged by us.
Holly J’s is the closest thing in the corpus to this door — a sloped metal bench and a cooler lid, outdoors, which is exactly the furniture a hang has. It is still not a hammock, and we are not going to stretch it into one.
—Read this before you buy, including the parts that cost us the sale
—Ninety days
Ninety days from delivery, used is fine. Take it out to the trees, leave it on the cooler lid through a few afternoons, let it live outside and see what it does. If it turns out you reach for the ground less than you thought, or the ridgeline sleeve was the right answer for your setup after all, send it back.
—Who makes it
Scott Rodriguez made the first one after a full drink went over on a soft cushion with three kids under three in the house. It was built for spills on surfaces that are not tables.
It was not designed for hammocks, and nobody hanging between two trees asked for this page. It exists because a wide base does the same thing on a cooler lid as it does on a couch, and because everything it does not do out there is written above rather than left out.
We make one thing and we make all of it here — the moulds, the material, the colour runs, everything within about three and a half miles of the shop. That is the part of this that resembles the small hammock makers people in this world already know by name.
— Scott, Steadi Labs
—Asked and answered
No, and we are not going to say it does. A hammock has no fixed shape and moves with your breathing, and no base that simply stands on a surface can hold a drink steady on something in motion. This is for the flat, still thing beside you — the cooler lid, the deck board, the picnic table, the ground.
That is the hang this exists for, and it is the one every catalogue above skips. There is nothing to hang, bolt or knot, so gathered-end or spreader-bar, tree-hung or stand-mounted makes no difference to it. It sits on whatever is under it and lifts off when you leave.
It needs something firm under the whole 5.2-inch base. Packed dirt, a board, a lid, a stump or a flat rock, yes. In long grass or soft tussock it will sit at whatever angle the ground is at — press a boot flat first, or use the cooler lid, which is what most people out there already have within reach.
Depends which one, and the difference is real. Type it into the checker above — the widths there are the manufacturers’ and retailers’ published figures rather than ours, and a wide-mouth bottle can easily be past the 3.15-inch ceiling. Or stand it on a sticky note.
It is one piece of Shore 85A thermoplastic polyurethane. There is no elastic band and no foam pad inside it to stretch out or dry-rot, because there is nothing inside it at all. We are not going to publish a weathering rating we have not measured — that is what the 90 days is for.
Only if it is in something without a handle. A camp mug with a handle does not seat, full stop — the handle lands exactly where the fins grip. An insulated tumbler under 3.15 inches at the base does.
Yes, top rack.
—Still deciding
The Kammok holder is $29.95 and needs a $339.95 stand. The anymaka is $49.00 and needs a $289.00 one. The Onewind is $19.99 and needs a ridgeline, which is another $24.95 if you do not run one. Those are all reasonable products, sold at reasonable prices, by companies that make hammocks for a living.
They are just answers to a different question. If you own a stand, buy the stand’s holder. If you run a ridgeline and your cup is under 3 inches, buy the Onewind. If you hang over a deck, buy the table. And if you are strung between two trees on an uneven lawn with nothing overhead, then there is nothing to mount to and there never was — which leaves the flat thing beside you, and something to stand the drink in on it.
Four catalogues, a rail-clamp spec sheet and a manufacturer’s own hanging instructions all describe the same object: a thing engineered to give way in every direction at once, because that is the only way it holds up a person. Nobody is fixing that, and you would not want them to — the loose curve is the reason it is comfortable. You just do not have to keep balancing the can on your chest.
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