Comparison
The best adjustable beds with a zero-gravity preset
Nine of the fourteen bases we track name the preset. Not one publishes the angles it drives to, which is the only thing that would tell you what you are buying.
By Stephen V.Published How we pick
We earn a commission if you buy through the links on this page, at no extra cost to you. It does not change what we recommend, and we have not tested these products — here is what we do instead.
A zero-gravity preset is a button that drives the bed to one saved position: the knees raised slightly above the heart, the head raised a little. It is a memory setting, not a separate mechanism. Any base with both head and foot lift can reach the same geometry if you hold the buttons down, and what the preset buys is repeatability — the same position every night, one-handed, in the dark.
| # | Pick | Key spec | Score | Price |
|---|---|---|---|---|
| Rank1 |  DOMIA T600 Queen Adjustable Bed Frame Best queen | Key specZero-G, anti-snorePresets | Score8.2/10 | |
| Rank2 |  FlexiSpot S3K-Lite King Adjustable Bed Base Most presets named | Key specZero-clearanceClearance | Score8.4/10 | |
| Rank3 |  Amada Split King Adjustable Bed Frame with Massage and Zero Gravity Best published angles | Key spec8, 10, 11 or 13 inLeg heights | Score9.2/10 | |
| Rank4 |  Marsail NS0 Split King Adjustable Bed Base Best split king | Key specDual, splitMotors | Score8.8/10 | |
| Rank5 |  Mixcous King Adjustable Bed Frame Heavy Duty 750 lbs Simplest king | Key spec750 lbCapacity | Score7.4/10 | |
| Rank6 |  DUMOS Split King Adjustable Bed Frame The one we would skip · we would skip this one | Key spec0 to 60 degreesHead lift | Score8.0/10 |
Prices checked September 17, 2026. Scores are our published spec rubric, not a test result — here is exactly how they are calculated.
Where the name comes from, and what it is worth
The phrase is borrowed from spaceflight. NASA has studied the posture the body settles into when gravity is not loading it — the neutral body posture — and its own later work found something the marketing rarely mentions: crew members varied a great deal from one another, with some settling almost upright, some pitched forward with the knees deeply bent, and some elongated with a straight neck. There is no single posture the body adopts in free fall, which means there is no single angle a bed can reproduce and call correct.
In general, three main postures were exhibited by the crew as a whole: an almost standing posture, a slightly pitched forward posture with an extreme bend at the knees, and an elongated posture with a straight neck.
So treat zero gravity as a convenience feature with a very good name, not as a medical function. That is not a reason to avoid it. A saved position you can reach with one button, without working two motors while half asleep, is genuinely useful for somebody with stiff hands or poor night vision — which is most of the people this site is written for. It is a reason not to pay a premium for it, and not to buy a base that publishes nothing else because it publishes this.
Nine of the fourteen bases we track name a preset
Here is every base in our comparison whose listing names a zero-gravity preset, with the other presets it names beside it. The angle column is the interesting one, because it is mostly empty.
| Base | Size | Presets the listing names | Angles published |
|---|---|---|---|
| DOMIA T600 | Queen | Zero-gravity, anti-snore | Head 65°, foot 45° |
| FlexiSpot S3K-Lite | King | Zero-gravity, anti-snore, memory | Not published |
| Mixcous | King | Zero-gravity | Not published |
| Amada | Split king | Zero-gravity | Head 65°, foot 45° |
| Tami T600 | Split king | Zero-gravity, anti-snore | Not published |
| Tami T450 | Split king | Zero-gravity, TV, one-touch flat | Head 65°, foot 45° |
| Best Choice Products | Split king | Zero-gravity, TV, head-tilt, saved custom | Not published |
| Marsail NS0 | Split king | Zero-gravity, anti-snore | Not published |
| DUMOS | Split king | Zero-gravity, in the spec table only | Head 0–60°, foot 0–40° |
The five we would choose, and the one we would not
We rank these the way we rank every base on this site: on what the listing publishes, not on what the photograph implies. The preset is a tiebreaker, never the reason. Full write-ups, published specifications and live prices follow.
1 · Best queen
DOMIA T600 Queen Adjustable Bed Frame
The only queen here that publishes both a zero-gravity and an anti-snore preset, on the only queen base in the set that also publishes a warranty term and a motor-noise figure.
- Presets
- Zero-G, anti-snore
- Our spec score
- 8.2/10
- Best for
- Both presets, published
As of September 17, 2026. #ad How we’re funded
What works
- Zero-gravity and anti-snore are both published as presets — no other queen in this set states both — alongside a 750 lb capacity this category usually leaves blank
- Motor noise given as a number, under 45 dB, rather than as the word quiet. Only two other bases in this set — both Tami Tami split kings — do that
- A five-year warranty on the frame and motor, and 30,000 tested lift cycles, both published. No other queen base here publishes a warranty term at all
What doesn’t
- The listing never says whether the remote is wireless or wired, and on a bed you operate from the mattress that is the control detail that matters most
- Three leg heights are published but not the depth of the deck sitting on them, so the finished sleep-surface height is still an estimate until it arrives
- The listing rules out a zero-clearance setup — the legs are required — so this cannot drop inside a frame you already own
Published specifications
| Positions | Head to 65 degrees and foot to 45 degrees, separately or together, plus zero-gravity and anti-snore presets |
|---|---|
| Motors | Dual, 8,000 N of thrust published, tested to 30,000 lift cycles |
| Leg height options | 3 heights up to 12 inches, from 4 in and 8 in leg sections |
| Frame height off floor | Not published |
| Remote | Not published |
| Weight capacity | 750 lb |
| Massage | Head and foot, multiple modes and intensity levels |
| USB ports | USB-A and USB-C |
| Motor noise | Under 45 dB |
| Under-bed light | Under-bed nightlight |
| Warranty | 5 years on frame and motor |
| Sizes listed | Queen |
Read from the product listing on 2026-09-10. Blanks are specifications the manufacturer does not publish, not figures we could not be bothered to find.
How the score was reached
| Entry-height controlThree leg-height options published with their measurements; four or more is the top band, and the frame height itself is not published. | 8 |
|---|---|
| ControlsThe listing never states whether the remote is wireless — the neutral score on /methodology. | 5 |
| Weight capacity750 lb published — the top band on /methodology. | 10 |
| Position rangeHead and foot, separately or together, plus published zero-gravity and anti-snore presets. | 9 |
| Setup and daily useAll three: USB-A and USB-C ports, an under-bed nightlight and a published tool-free five-minute assembly. | 9 |
| Mean, rounded to one decimal | 8.2 |
2 · Most presets named
FlexiSpot S3K-Lite King Adjustable Bed Base
Zero clearance means it drops into an existing bed frame, which is the cheapest way to keep a bed you already like at a height you already know works.
- Clearance
- Zero-clearance
- Our spec score
- 8.4/10
- Best for
- Dropping into your existing frame
What works
- Zero-clearance: it sits inside the bed frame you already own, so the finished height stays whatever it is now
- Zero-gravity, anti-snore and a one-button memory position, all published — the fullest preset list of any base here
- A published 750 lb capacity and a remote with a built-in flashlight, so finding the flat button at 3am does not mean finding a lamp first
What doesn’t
- One leg height, 12 inches, and no published frame height — so if you use it outside a frame the finished height is fixed
- If your existing frame is already too low, a zero-clearance base does not fix that; risers or a different frame do
- King only, and no USB ports or under-bed lighting published
Published specifications
| Fits inside an existing frame | Yes — zero-clearance design |
|---|---|
| Leg height options | 12 in legs (one published height) |
| Frame height off floor | Not published |
| Remote | Wireless, with a built-in flashlight |
| Weight capacity | 750 lb |
| Positions | Head and foot incline, zero-gravity, anti-snore and a memory preset |
| Massage | Not published |
| USB ports | Not published |
| Under-bed light | Not published |
| Sizes listed | King |
Read from the product listing on 2026-08-26. Blanks are specifications the manufacturer does not publish, not figures we could not be bothered to find.
How the score was reached
| Entry-height controlZero-clearance preserves your existing frame height; one published leg height, 12 in, and no frame height. | 7 |
|---|---|
| ControlsWireless remote with a published built-in flashlight for night use. | 9 |
| Weight capacity750 lb published — the top band on /methodology. | 10 |
| Position rangeZero-gravity, anti-snore and a memory preset all published — the top band. | 10 |
| Setup and daily useNo USB, lighting or assembly detail published. | 6 |
| Mean, rounded to one decimal | 8.4 |
3 · Best published angles
Amada Split King Adjustable Bed Frame with Massage and Zero Gravity
The only split king here that gives its leg heights as actual measurements, which is the one specification that decides whether you can stand up from the edge of the bed.
- Leg heights
- 8, 10, 11 or 13 in
- Our spec score
- 9.2/10
- Best for
- Setting the height
What works
- Four leg heights published as real measurements — 8, 10, 11 or 13 inches — so the entry height can be worked out before delivery instead of after
- A published 750 lb rating, an under-bed nightlight, and both a USB-A and a USB-C socket on each side
- Tool-free three-step setup, which counts on a bed that arrives as two separate boxes
What doesn’t
- The deck sits on top of the legs and the listing never says by how much, so the leg figures get you close to the finished sleep height but not exactly to it
- No warranty term and no motor-noise figure published anywhere on the listing
- We would read the massage as a novelty rather than a reason to buy, and it is part of what this base charges for
Published specifications
| Configuration | Split king — two independent twin XL halves |
|---|---|
| Leg height options | Four published: 8, 10, 11 or 13 inches, built from 2-inch, 3-inch and 8-inch leg sections |
| Frame height off floor | Not published |
| Remote | Wireless |
| Weight capacity | 750 lb |
| Positions | Head to 65 degrees, foot to 45 degrees, plus a zero-gravity setting |
| Massage | Head and foot, three intensity levels |
| USB ports | USB-A and USB-C on each side |
| Under-bed light | Nightlight |
| Motor noise | Not published |
| Warranty | Not published |
| Sizes listed | Split king (two twin XL, 37.4 by 79.3 inches each) |
Read from the product listing on 2026-08-28. Blanks are specifications the manufacturer does not publish, not figures we could not be bothered to find.
How the score was reached
| Entry-height controlFour published leg-height options with their measurements; the deck height above the legs is not published. | 9 |
|---|---|
| ControlsWireless remote plus a published under-bed nightlight. | 9 |
| Weight capacity750 lb published — the top band on /methodology. | 10 |
| Position rangeIndependent halves, head and foot, plus a published zero-gravity setting. | 9 |
| Setup and daily useUSB-A and USB-C each side, an under-bed nightlight and a published tool-free assembly claim. | 9 |
| Mean, rounded to one decimal | 9.2 |
4 · Best split king
Marsail NS0 Split King Adjustable Bed Base
Two independent halves, so one person can sit up to read at midnight without tipping the other one out of a book.
- Motors
- Dual, split
- Our spec score
- 8.8/10
- Best for
- Two people, one bed
As of September 17, 2026. #ad How we’re funded
What works
- Each half moves independently, which is the entire argument for a split king
- Published zero-gravity and anti-snore presets — an anti-snore preset is a small head raise, not a medical device
- Published three-minute setup, four USB ports and a 750 lb rating per twin XL half
What doesn’t
- A split king needs two twin XL mattresses and a gap filler, which is money and effort the listing price does not include
- The legs are described as adjustable but neither the number of settings nor the heights are published, so the entry height is still a guess until it arrives
- A one-year warranty, where two of the split kings we track publish five
Published specifications
| Configuration | Split king — two independent twin XL halves |
|---|---|
| Motors | Dual motor, validated for 50,000 cycles |
| Leg height options | Adjustable legs; neither the count nor the heights are published |
| Frame height off floor | Not published |
| Remote | Wireless |
| Weight capacity | 750 lb per twin XL half |
| Positions | Head and foot incline, zero-gravity and anti-snore presets |
| USB ports | 4 |
| Under-bed light | Yes |
| Motor noise | Not published |
| Warranty | 1 year |
| Sizes listed | Split king |
Read from the product listing on 2026-08-28. Blanks are specifications the manufacturer does not publish, not figures we could not be bothered to find.
How the score was reached
| Entry-height controlAdjustable legs published, but no count and no measurements — the middle band on /methodology. | 7 |
|---|---|
| ControlsWireless remote plus a published under-bed light. | 9 |
| Weight capacity750 lb per half published — the top band on /methodology. | 10 |
| Position rangeIndependent halves plus published zero-gravity and anti-snore presets. | 9 |
| Setup and daily useFour USB ports, under-bed lighting, three-minute setup claimed. | 9 |
| Mean, rounded to one decimal | 8.8 |
5 · Simplest king
Mixcous King Adjustable Bed Frame Heavy Duty 750 lbs
The largest deck here that publishes a capacity: a full king rated to 750 lb, the joint-highest figure any listing states.
- Capacity
- 750 lb
- Our spec score
- 7.4/10
- Best for
- A heavier sleeper on a king
As of September 17, 2026. #ad How we’re funded
What works
- A published 750 lb capacity — the joint-highest figure stated here, and on the largest deck that states one
- A zero-gravity preset — the position that puts your knees above your heart, which some people find takes load off the lower back
- The listing claims easy assembly, which on a king-size frame is not nothing
What doesn’t
- Nothing published about leg heights, so you cannot plan the finished height of the bed before it arrives
- King only, and a king base is a two-person carry up a staircase
- No published USB ports or under-bed lighting
Published specifications
| Weight capacity | 750 lb |
|---|---|
| Leg height options | Not published |
| Frame height off floor | Not published |
| Remote | Wireless |
| Positions | Head and foot incline, zero-gravity preset |
| Massage | Not published |
| USB ports | Not published |
| Under-bed light | Not published |
| Sizes listed | King |
Read from the product listing on 2026-07-23. Blanks are specifications the manufacturer does not publish, not figures we could not be bothered to find.
How the score was reached
| Entry-height controlNo leg-height information published — neutral score. | 5 |
|---|---|
| ControlsWireless remote published. | 8 |
| Weight capacity750 lb published — the top band on /methodology. | 10 |
| Position rangeHead and foot incline plus a published zero-gravity preset. | 8 |
| Setup and daily useEasy assembly claimed; no USB or lighting published. | 6 |
| Mean, rounded to one decimal | 7.4 |
6 · The one we would skip · we would skip this one
DUMOS Split King Adjustable Bed Frame
We would skip this one. It publishes less than anything else on this page — no leg height, no light, no warranty — and it has the shallowest lift angles of the six.
- Head lift
- 0 to 60 degrees
- Our spec score
- 8.0/10
- Best for
- The basics and nothing else
What works
- Two wireless remotes, one per half, plus a sync function that moves both together as a single king
- A USB-A and a USB-C socket on each base, and a published 750 lb rating per half
- Tool-free assembly with no extra hardware, shipped as two cartons rather than one unmanageable one
What doesn’t
- Nothing published about leg height or frame height, on a page where four of the six bases publish something about it
- No under-bed light, no warranty term, no motor-noise figure and no massage — the thinnest published record of the six
- The shallowest published lift here: 60 degrees at the head and 40 at the feet, against 65 and 45 on the Amada and the Tami Tami T450
Published specifications
| Configuration | Split king — two independent twin XL bases, syncable to move as one king |
|---|---|
| Leg height options | Not published |
| Frame height off floor | Not published |
| Remote | Wireless, one per half |
| Weight capacity | 750 lb per twin XL base; the specification table gives 1,500 lb for the pair |
| Positions | Head 0 to 60 degrees, foot 0 to 40 degrees, independent per half. The specification table also names a zero-gravity mode that none of the listing bullets describes. |
| Massage | Not published |
| USB ports | USB-A and USB-C on each base |
| Under-bed light | Not published |
| Motor noise | Not published |
| Warranty | Not published |
| Sizes listed | Split king |
Read from the product listing on 2026-08-28. Blanks are specifications the manufacturer does not publish, not figures we could not be bothered to find.
How the score was reached
| Entry-height controlNothing published about legs or frame height — the neutral score on /methodology. | 5 |
|---|---|
| ControlsWireless remote published, no lighting of any kind. | 8 |
| Weight capacity750 lb per base published — the top band on /methodology. | 10 |
| Position rangeIndependent halves, head and foot, with a sync function. | 9 |
| Setup and daily useUSB-A and USB-C on each base and a published tool-free assembly claim, but no lighting — two of the three. | 8 |
| Mean, rounded to one decimal | 8.0 |
The DUMOS is the one we would skip, and the reason is specific to this page. Its zero-gravity mode appears in the listing's specification table and is described nowhere in the bullets — no angle, no description, no mention in the feature list a buyer actually reads. Alongside that it publishes no leg height, no under-bed light and no warranty, and the shallowest head and foot travel of the nine. A preset named in a spec table and abandoned everywhere else is not a feature we would pay for.
Who the position genuinely helps
Knees above the heart is a real change in load and drainage, and there are people for whom it matters. There are also people being sold it for a problem it does not solve. Honestly, in this order:
- Lower back discomfort. Raising the knees reduces the pull of the legs on the pelvis for many people, which is the mechanism behind the whole marketing claim. It is also the one you can test tonight for free. What a bed does and does not do for back pain.
- Swollen legs and ankles. Foot elevation is the part that matters here, and it has to be held for hours rather than minutes to do anything. The preset is a convenient way to reach it; the duration is what decides the result. Elevation and circulation.
- Restless legs at night. Some people find a raised-knee position more tolerable when their legs will not settle, and a one-button position is easier to reach at two in the morning than two motor buttons. It is not a treatment. What a bed can and cannot do for restless legs.
- Snoring, which is not sleep apnea. A small head raise reduces snoring for some people, which is why the anti-snore preset exists alongside this one. Sleep apnea is a diagnosis with medical treatments and a bed position is not one of them. The honest version.
- Reflux — but try the cheap thing first. For heartburn the head raise does the work, not the knee raise, and a wedge pillow answers the question for a fraction of the money. Reflux, wedges first.
For every one of those, the free test is the same: lie down tonight with two pillows under your knees and a low one under your head, and see how you feel in the morning. If it helps, a preset makes that position repeatable without building a pillow fort every night. If it does not, you have saved yourself several hundred dollars and learned something no review could have told you.
What the preset does not do
It does not change the height of the bed, and height is what decides whether you can stand up from the edge of the mattress unaided. This is the distinction that runs through every page on this site: a base changes the angle of the bed, not the height of the bed. If the reason you are shopping is that getting up has become a struggle, a zero-gravity button will not touch that problem, and the height arithmetic will. Of the six bases above, only the DOMIA and the Amada split king publish leg heights at all, and those two are the only ones that can change your finished sleep-surface height by a known amount.
It also does not make the bed easier to get into. Raising the head before you swing your legs out is the movement that helps, and every base with head lift does that — preset or no preset.
If you already own a base without the preset
You can still have the position. Drive the foot section up until your knees sit a little above your chest, then bring the head up until your neck is supported rather than folded, and leave it there. That is the whole thing. Some bases let you save a custom position — the Best Choice Products split king publishes saved custom positions, for instance — and on the ones that do not, it takes about fifteen seconds to set by hand. How the motors and the memory actually work explains why a preset is a stored motor position and nothing more.
What we could not verify
We have not slept on any of these beds and we do not claim to have. Everything above comes from the listings, read on the dates stamped on each product's specification table, plus the NASA report cited in the sources. We could not verify the zero-gravity angles, because nobody publishes them; we could not verify motor noise beyond the three listings that state a decibel figure; and we could not verify how long any of these presets keeps working, because no listing publishes a cycle rating for the memory function. Where a figure is missing here, it is missing because it was not published — not because we did not look. How we pick.
Questions people actually ask
What is the zero-gravity position on an adjustable bed?
One saved position: the knees raised slightly above the heart with the head raised a little. It is a memory preset, not a separate mechanism. Any base with both head and foot lift can be driven to the same geometry by hand, which is worth knowing before you pay extra for the button.
Which adjustable beds have a zero-gravity preset?
Nine of the fourteen bases we track name one on the listing: the DOMIA T600 queen, the FlexiSpot S3K-Lite king, the Mixcous king, and the Amada, Tami T600, Tami T450, Best Choice Products, Marsail NS0 and DUMOS split kings. The five that do not are the Amada queen, the Marsail queen, the Best Choice Products queen, the Pipishell twin XL and the Serta baselogic.
What angle is zero gravity?
No listing in our comparison publishes it. Every one of the nine names the preset; not one states the head and foot angles the button actually drives to. That means you cannot tell from the listing whether a given base's zero gravity is a gentle tilt or a deep recline, and we will not print a number nobody published.
Is the zero-gravity position good for back pain?
Some people find that raising the knees takes load off the lower back, and it costs nothing to test: lie down tonight with a couple of pillows under your knees and a low pillow under your head. If that feels better in the morning, a preset makes the same position repeatable one-handed. More on beds and back pain.
Does a zero-gravity preset make it easier to get out of bed?
No. Getting out of bed is decided by how high the sleep surface sits off the floor, and no preset changes that. Raising the head before you swing your legs out genuinely helps, and every base here does that with or without the preset. The height arithmetic is the part that decides it.
Sources
Every factual claim on this page traces to one of these, or to a product listing cited in the specification table beside it.
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