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5,320+ bought last week - almost sold out!
HourFour® cushion uses a premium clinically proven cut-out and twin-channel foam design built to relieve tailbone pain, sciatica, lower back ache and numbness to ensure comfortable sitting for many hours.
- Takes the pressure off tailbone and sit bones
- Stops the sore butt, keeps legs awake
- Dense foam that never bottoms out
- Stand up and walk like yourself
- 90-Day Hour-Four Guarantee
Ships by the next business day | Free Express Shipping
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Due to high demand, limited quantities available.
89% sold
Opened the box and thought "brick." Sat down half-planning to send it back. By the afternoon my tailbone wasn't screaming for the first time in a year, and six weeks later the foam still bounces back the same as day one. Ordered a second one for my mom. Anyone who sits all day: this is the one that finally works.
Trusted by 33,500+ people whose butt stopped hurting.
Product specifications
- Outer cover: charcoal heather knit, removable, machine washable
- Core: a high-resilience foam, chosen to hold its shape through a full day of sitting, not to feel softest in the box
- Shape: oval tailbone cut-out, twin thigh channels, built-in back panel, one piece
- Size: 44 × 42 cm seat, 32 cm back panel
- Base: black non-slip
What makes it different
- Judged at hour four, not the unboxing: the foam is chosen for what it is still doing at four o'clock, when soft cushions have gone flat and hard ones have been a brick all day.
- Cut-out and channels: nothing touches your tailbone, and your sit bones rest in two channels sized to carry them.
- Back panel: fills the gap every chair leaves behind your lower back, so you sit upright without deciding to.
Returns and refunds
- 90-day guarantee. Sit on it at work, in the car and at the table. Not still holding you up? Send it back any time in the first 90 days for a full refund.
- Prepaid label, no box needed. Email us, print the label, drop it off. Wrong fit? We swap it.
Full policy: read it here.
HELPS WITH
Your chair was tested for fifteen minutes.
You sit in it for nine hours.
Around four o'clock the foam under you gives up and hands your whole weight to three points of bone. That is the wall. Almost no one builds for it — this cushion does.
A day on a normal chair, hour by hour
Sound familiar? This is what every flat seat does by four o'clock.
A day on a normal chair, hour by hour
Sound familiar? This is what every flat seat does by four o'clock.
9:00 AMFine. Nearly.
A small bracing breath as you sit down.
11:30 AMThe first shift.
One hip, then the other. A folded hoodie appears.
2:00 PMLegs going to sleep.
Standing on a timer. Pulling onto the shoulder.
4:00 PMThe wall.
You get up walking like someone twice your age.
If any of these are yours, keep reading.
Short lines from people who bought this cushion. First-person, unedited.
Three points of bone. One flat seat. That is the whole injury.
Sit down and almost all of you lands on two sit bones and a tailbone. A flat pan gives them nowhere to go. Soft foam feels lovely in the box, then bottoms out under your heat and your weight. Hard foam skips the lovely part and is a brick from minute one.
It was never your weight. Never your age. Never the padding you lost. It was the seat.
Every cushion you owned died one of two deaths.
The soft one went flat as a pancake. The hard one stayed hard as a rock. Two failures, one cause: nobody matched the foam to your weight and your hours, and nobody printed the number, so you could not have known.
Judged at hour four. Not the unboxing.
The part your chair never built
A tailbone cut-out, twin thigh channels and a built-in back panel in one piece of foam do the three things a flat seat cannot:
•Suspends your tailbone so nothing touches it. Not at minute one, not at four o'clock.
•Carries your sit bones in two channels sized for them, so pressure spreads instead of stabbing.
•Fills the gap behind your lower back that every chair leaves, so you sit upright without deciding to.
Bring the tape measure. Then decide.
Seat is 44 × 42 cm. Back panel is 32 cm. The base grips. Measure your chair, your car seat, your kitchen dining chair. If the numbers do not fit, prepaid label, no box, no questions.
From people who sit for a living
Read the ones that mention hour four.
Sit for hours. Get out walking.
Legs going to sleep on the drive is the front of your seat cutting off the flow. The channels lift the backs of your thighs off the pan and the cut-out keeps your tailbone off it. Blood keeps moving. You climb out and walk.
“The excruciating pain was gone and I was able to drive from FL to Wisconsin.”Verified buyer, 2026
On the chair you already own.
The base grips, the back panel stands on its own, nothing straps or adjusts.
Different names on the chart. Same three bones.
Whatever they called it, the seat is where it starts.
Tailbone pain
The oval cut-out suspends your tailbone in air. The seat never touches it again, not at minute one and not at four o'clock.
Sciatica
Level hips, both sit bones carried in their own channel, nothing pressing on the nerve on the way down the leg.
Lower back ache
The built-in back panel fills the gap every chair leaves behind your lower back, so you sit upright without deciding to.
Legs going numb
The channels lift the backs of your thighs off the pan. Blood keeps moving. You stand up and your legs are already there.
SI joint and hips
Both sides carried equally, so one hip is never doing the other's work by mid-afternoon.
Sitting after surgery, a flare, or with no padding left
Nothing touches the sore point. The cut-out is exactly what makes it work with thin padding, after surgery, or on a bad week.
You have paid for relief before. It never came home with you.
What the people in the reviews above had already spent before the cushion.
$54.99 once. Desk, car, table. Not holding you up after a real day? Back on our label.
What most cushionsleave out.
Side by side with the typical seat cushion
 HOUR FOUR Original |
Others Typical cushion |
|
|---|---|---|
Tailbone suspended by a closed cut-out | Some | |
Built-in back panel | ||
Twin channels for the sit bones | ||
Judged at hour four, not at the unboxing | ||
Non-slip base | Some | |
Prepaid return label, no box |
90-Day Guarantee
Sit on it for three months, then decide. The last one fooled you at the unboxing, so take this one to work, on the long drive, and through Sunday dinner. Not still holding you up? Send it back any time in 90 days for a full refund. Prepaid label. No box. No reason needed.
Get the cushion