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Health Report · Sitting Pain · 4 Min Read
Updated September 18, 2026
Woman half-risen from a dining chair with tailbone, lower back and leg pain shown in an anatomical overlay while her family watches
NoteThis cushion sold out 8 times last year. The current batch is in stock.
Rated 4.8 / 5.0 · 12,500+ Happy Customers

7 Reasons People Whose Tailbone, Butt or Lower Back Hurts From Sitting Are Ditching Expensive Chairs for This $54 Orthopedic Cushion

If your tailbone, butt or lower back is screaming after an hour in a chair, a car seat or a couch, it is not your age and it is not your weight. It is the flat seat under you, and it has been lying to you for years.

The Hour Four Orthopedic Cushion is ending the sitting pain for office workers, drivers, and anyone who sits for hours and has already burned $300 on cushions that went flat. Foam built to a published density that still holds at hour four. A coccyx cutout that suspends your tailbone in open air. A contoured seat that stops your legs going numb. One fix that turns any chair into a chair you can sit in all day.

Here is why people who sit for hours are making the switch.

Dr. Sarah Mitchell

Recommended by Dr. Sarah MitchellCertified Spine Physiatrist

“Sitting pain is three points of bone on a flat seat. Take the tailbone out of contact and most of it has nowhere to start.”

Read this if you shift from one cheek to the other every ten minutes.

1

Rated 4.8/5 Stars by 12,500+ Real Customers Who Sit for Hours Every Day

Office workers. Long-haul drivers. People six weeks out of surgery. Anyone who sits for hours and hurts. They all say the same thing: it works, and it keeps working past month three.

Cheap Amazon cushions get five-star reviews in week one and one-star reviews by month two, once the foam has rotted flat and you are sitting on the chair again. Hour Four customers report the opposite after months of daily use: less tailbone pain, legs that stay awake, and a cushion that still feels like day one. The same three things, over and over.

See the cushion they all switched to →
So why did every cushion you bought before this one quit?
Desk worker using Hour Four cushion
Desk Tested Verified Customer
Marcus T.
Verified Customer

I sit in an office chair for 8 hours a day, 5 days a week. The cheap $50 Amazon cushion still made my rear hurt after about 4 hours, and the $74 replacement felt exactly like the one I just replaced, flat. Four months on the Hour Four and by Friday I have had no pain. I didn't realize how well it was helping until I had to sit in a chair all day without it.

2

Density-Matched Foam That Won't Rot Flat Like Every Cushion You've Wasted Money On

Here is the truth cushion brands will not print on the box: standard memory foam is low-density junk that compresses for good within weeks. That is why your last cushion went flat, and why the $74 replacement felt flat out of the box. It was built to outlast the return window, not you.

Hour Four's is built to one published density for your weight and your hours, judged at hour four, not the fifteen-minute showroom sit. Firm enough to hold your hips level through a six-hour shift or a six-hour drive, soft enough to take the weight off your tailbone. Nobody else prints the number, because nobody else wants you to compare.

See the foam that outlasts the return window →
So what does a number actually do for a tailbone that is raw by four?
Cutaway of the Hour Four cushion showing the soft comfort layer, high density support core and non-slip base, with a pelvis seated on it, sit bones cradled and tailbone suspended in the cut-out
3

End Tailbone, Sit-Bone and Lower-Back Pain From Sitting, Without Replacing Your Chair

Most chairs, even the $1,200 ones, still drive your full weight straight through your tailbone. So does every car seat, every dining chair, every couch. They are built for your spine, not for the three points of bone you sit on. Your chair did not fail. Your body did not fail. Three points of bone on a flat seat failed, every hour you sat, for years.

The Hour Four coccyx cutout suspends your tailbone in open air. Zero contact. Zero pressure. The contoured seat keeps your hips level so you stop rocking from one sit bone to the other every ten minutes. It does the one thing your chair physically cannot, and it is tested at hour four, not at the unboxing.

90-day money-back guarantee
Fix the seat, keep the chair. See how →
One cushion. But the pain follows you to every seat you own.
Hour Four cushion biomechanics pressure relief diagram

ONE CUSHION. ONE NUMBER.

Every Chair You Own Was Tested for Fifteen Minutes. You Sit in It for Nine Hours.

Soft cushions rot flat. Hard ones are a brick from day one. Hour Four is built to a published density for your weight and your hours, and judged at hour four, not the showroom.

See the Hour Four Cushion ›
90-Day Guarantee · Free Returns · Ships Fast
4

Works on Every Chair You Own. Desk, Car, Dining Room, Wheelchair.

Sitting pain follows you everywhere. Your office chair hurts. Your car seat is worse. The dining chair at Thanksgiving is torture, and your family noticed the wince before you admitted it. You cannot buy a new chair for every seat in your life.

The Hour Four non-slip base grips any seat: office chairs, dining chairs, the couch, car seats, wheelchairs, airplane seats. One cushion covers every seat you will sit in today. For years the pain has followed you from the desk to the car to the dinner table. Now something follows the pain.

One cushion for every chair you own. See it →
But what about the legs that go to sleep before the pain even starts?
Hour Four cushion on desk chair, car seat, dining chair, and wheelchair
5

No More Numb Legs or Tingling After 30 Minutes in Any Seat

A flat seat crushes the backs of your thighs and cuts off the blood. That is why your legs go numb, tingle, or feel heavy by the second hour. You shift. You fidget. You stand up and shake it out, or pull over to walk it off. Ten minutes later, it starts again.

Hour Four carries you on the whole of your thighs, not the two-inch strip behind your knees. Blood flows. Your legs stay awake. You stop fidgeting, stop pulling over, and stop counting the minutes until you can stand up.

90-day money-back guarantee
Stop your legs going numb. See the cushion →
So what does this cost next to everything you have already thrown at the problem?
Woman working from home seated on Hour Four cushion

Still Getting Out of the Chair Walking Like Someone Twice Your Age?

Try the Number Instead ›
6

100x Cheaper Than the "Proper" Fixes That Did Not Work

Let's do the math on what you have already spent trying to fix sitting pain:

The expensive office chair: $800 to $1,200.
Weekly chiropractor: $75 to $150 a visit. $3,000+ a year.
Physical therapy: $200+ a session, eight or more sessions. $1,600+.
Standing desk (used as a shelf): $400 to $800.
Three cushions that went flat: $90 to $220.

Total: $5,890+. And your tailbone STILL hurts every time you sit down.

The Hour Four cushion is one $54.99 purchase that takes the weight off your tailbone and sit bones, for a fraction of what you spent on fixes that never touched the real problem.

Skip the $5,890. See the $54.99 fix →
Numbers are cheap to print. The question is whether anyone stands behind them.
Cost comparison: $5,890+ on failed solutions versus $54.99 Hour Four cushion
7

Backed by Published Numbers, Protected by a 90-Day Guarantee

Every other cushion sells you adjectives: "premium," "ultra-supportive," "medical-grade." Cut the foam open at month three and it is the same cheap junk as the $20 one. Hour Four prints the number instead: foam density, weight rating, dimensions. Tested at hour four, not at the unboxing.

But we know you have been burned before. That is exactly why every Hour Four cushion comes with a 90-day guarantee. Sit on it at your desk, in your car, at dinner, for three months. If your tailbone is not better off, send it back on our prepaid label. No box. No argument. No questions.

90-day money-back guarantee
Try it for 90 days at our risk. Start here →
Hour Four cushion held up in a clinical office
Built to a Published DensityTested at hour four, not the unboxing
90-Day Money-Back GuaranteePrepaid return label, no box needed
Free Shipping on All OrdersFree returns too

BUILT FOR HOUR FOUR

Every day you sit on a flat seat is another day you chose the pain over a number.

Monday is another nine hours in a chair. Your chair is not changing. Your body is not changing. The seat pan is.

Flash sale ends in 23:00

See the Hour Four Cushion · $54.99 ›
90-Day Guarantee · Free Returns · Published Density · Tested at Hour Four

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Hour Four Cushion
Hour Four Cushion
4.8 (12,500+ reviews)
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