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Sissel sitting wedge cushion in black, ergonomic tapered seat cushion designed to improve posture, support the lower back and pelvic floor, and encourage healthy spinal alignment during prolonged sitting at home, work or in the car.
Woman sitting at a desk using a Sissel sitting wedge cushion, demonstrating improved posture and ergonomic seating support to reduce lower back strain and encourage healthy spinal alignment while working or reading at a table.
Illustration showing correct sitting posture using a wedge cushion, with the pelvis tilted forward and the spine aligned upright to support the lower back.
Sissel sitting wedge cushion in black, ergonomic seat cushion with tapered design to promote upright posture, support the pelvis, and reduce lower back strain while sitting.
Illustration showing incorrect sitting posture with a slouched spine and tilted pelvis, highlighting poor alignment that can increase lower back strain and discomfort when sitting without proper support.
Sissel sitting wedge cushion in black, ergonomic tapered seat cushion designed to improve posture, support the lower back and pelvic floor, and encourage healthy spinal alignment during prolonged sitting at home, work or in the car.
Woman sitting at a desk using a Sissel sitting wedge cushion, demonstrating improved posture and ergonomic seating support to reduce lower back strain and encourage healthy spinal alignment while working or reading at a table.
Sissel sitting wedge cushion in black, ergonomic seat cushion with tapered design to promote upright posture, support the pelvis, and reduce lower back strain while sitting.
Illustration showing correct sitting posture using a wedge cushion, with the pelvis tilted forward and the spine aligned upright to support the lower back.
Illustration showing incorrect sitting posture with a slouched spine and tilted pelvis, highlighting poor alignment that can increase lower back strain and discomfort when sitting without proper support.
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15367

Sissel Sitting Wedge Cushion

  • Recommended for rehabilitation & ergonomic support - Trusted by physiotherapists and ergonomics experts, the Sitting Wedge is ideal for rehabilitation programs, injury prevention and maintaining proper spinal alignment, supporting users of all ages
  • Reduce back, hip & pelvic strain - By tilting the pelvis and engaging core muscles, the Sitting Wedge reduces pressure on the lower back, hips and pelvis, helping to alleviate discomfort during prolonged sitting at a desk, in a car or at home
  • Active sitting for core engagement - The wedge encourages subtle, continuous movement while seated, which activates stabilising muscles, strengthens the core and improves balance, making even everyday sitting a gentle exercise for your postural muscles
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Product Description

Sissel Sitting Wedge Cushion - Sit Tall. Sit Comfortably. Support Your Back & Pelvic Floor Every Day

 

Transform the way you sit with the Sissel Sitting Wedge Cushion – a premium, tapered cushion designed to improve posture, reduce lower back pain and support a healthier spine. Prolonged sitting at your desk, in the car or at home can strain your back and cause fatigue. This simple yet effective seat wedge automatically tilts your pelvis forward to encourage an upright sitting position, protecting your lumbar spine and intervertebral discs.

 

Key Benefits of the Sissel Sitting Wedge Cushion

  • Improves Sitting Posture Naturally – Encourages a gentle forward pelvic tilt that aligns the spine and prevents slouching.

  • Relieves Back Pain & Spinal Pressure – Ideal for office workers, students or drivers experiencing discomfort from prolonged sitting.

  • Fits Almost Any Chair – Perfect for use at home, work, in the car or even classroom seating.

  • Firm & Supportive Construction – High-density ILD foam retains its shape for consistent support all day long.

  • Portable & Lightweight – Easy to carry between workstations or take on the go.

 

 

The Sissel Sitting Wedge cushion is an ergonomic seat cushion designed for use on office chairs, dining chairs, car seats or even classroom seating, making it ideal for any environment. Perfect for people with poor posture, sedentary lifestyles or lower back pain, it gently tilts the pelvis forward to encourage healthy spinal alignment and reduce pressure on the lumbar spine. Compact, discreet and highly portable, this posture-correcting cushion is the perfect solution for anyone looking to improve sitting comfort, relieve back strain and support their spine at home, at work or on the go.

 

How It Works

The Sissel Sitting Wedge positions your hips slightly higher than your knees, gently tilting the pelvis forward and maintaining the spine’s natural S-curve. This reduces stress on lumbar muscles and discs while training your body to adopt better sitting habits. Over time, it can help improve core stability, posture and comfort during extended periods of sitting.

 

Materials & Design

  • High-Density ILD Foam Core – Provides firm, reliable support.

  • Durable, Easy-Clean Cover – Designed for everyday use at home, work or on the road.

  • Tapered Size – 35 cm x 35 cm x 2.5 cm at the front / 6 cm at the back for optimal pelvic tilt.

 

 

 

Features & Specifications

Recommended For:By physiotherapists to support recovery from back issues or to prevent posture-related discomfort
Reducing strain on the lumbar spine, pelvis and hips during long periods of sitting
Encouraging small, continuous movements that strengthen back and abdominal muscles while seated
Upright sitting and proper spinal alignment to help prevent slouching
Material:High-density ILD foam core and cotton durable cover
Size:35cm x 35cm x 2.5cm/6cm
Weight:0.52kg
Contents:1 x Sitting wedge

FAQs

What is the Sissel Sitting Wedge?
The Sissel Sitting Wedge is an ergonomic seat cushion designed to promote active sitting, tilt the pelvis forward and support a natural spinal alignment. By improving posture and reducing strain on the lower back, it’s ideal for anyone who spends long hours sitting at a desk, in the car or at home.

Who can benefit from using the Sissel Sitting Wedge?
This posture-correcting seat wedge is perfect for office workers, students, drivers, commuters and people recovering from back problems. It’s especially helpful for reducing spinal strain, improving sitting posture and strengthening core and back muscles over time.

Will the Sissel Sitting Wedge fit on all chairs?
Yes. Measuring approximately 35 × 35 cm, the compact design makes it suitable for most standard chairs, including office chairs, dining chairs, classroom chairs and car seats, providing consistent ergonomic support wherever you sit.

Will the Sissel Sitting Wedge improve my posture immediately?
You’ll feel the gentle tilt right away, encouraging an upright sitting position. With regular use, it helps train your body to maintain correct posture naturally, improving core stability and reducing pressure on the lower back.

Can I use the Sissel Sitting Wedge in my car?
Absolutely. The Sissel Sitting Wedge is designed to fit most car seats, making it an ideal choice for commuters, professional drivers or anyone seeking back support and posture correction on the go.

How does the Sissel Sitting Wedge work?
The wedge shape is thicker at the back and thinner at the front, gently angling your hips higher than your knees. This tilt encourages your spine’s natural S-shape, relieves pressure on the lumbar region and promotes better posture, improved comfort and reduced back pain during prolonged sitting.

Delivery & Returns

 

For domestic (United Kingdom) orders we offer 2 delivery options. The majority of items will be sent via Royal Mail 48 tracked service (delivery 3-5 working days), unless otherwise specified. For your peace of mind all our items will be sent with tracking so you can easily keep an eye on your order. For any orders over £55, shipping is free and will be sent with Royal Mail 48.

Shipping Service Service Level Shipping Cost
  Order over £55  FREE
Royal Mail 24 95% Arrive Next Day £6.49
Royal Mail 48 3-5 Working Days. Free for orders over £55. £4.49

We ship all international orders via Royal Mail International. For estimated delivery times and a full list of destinations we ship to, please visit our Delivery Information page.

Discreet Packaging

We go the extra mile to make sure your purchase is carefully wrapped to conceal its contents—only your address will appear, with no mention of what's inside.

 

Returns

If you’re not 100% happy with your purchase you can return it within 30 days of delivery. Whether it’s the wrong size, or you just want to return it, we will be happy to offer an alternative or a refund. We give 30 days (from date of receipt) to return an item.

If the item is faulty/damaged, you’ll receive a FULL refund. However, if the item is no longer suitable or you have changed your mind, a small postage charge of £3.95 will be deducted. Please ensure unwanted items are unopened, unused, and everything is in a re-saleable condition; if the probe has been used, the price of the probe will be deducted from your order. Please get in touch with our Customer Service Team if you have any questions.

  • Product Description

  • Features & Specifications

  • FAQs

  • Delivery & Returns

Sissel Sitting Wedge Cushion - Sit Tall. Sit Comfortably. Support Your Back & Pelvic Floor Every Day

 

Transform the way you sit with the Sissel Sitting Wedge Cushion – a premium, tapered cushion designed to improve posture, reduce lower back pain and support a healthier spine. Prolonged sitting at your desk, in the car or at home can strain your back and cause fatigue. This simple yet effective seat wedge automatically tilts your pelvis forward to encourage an upright sitting position, protecting your lumbar spine and intervertebral discs.

 

Key Benefits of the Sissel Sitting Wedge Cushion

  • Improves Sitting Posture Naturally – Encourages a gentle forward pelvic tilt that aligns the spine and prevents slouching.

  • Relieves Back Pain & Spinal Pressure – Ideal for office workers, students or drivers experiencing discomfort from prolonged sitting.

  • Fits Almost Any Chair – Perfect for use at home, work, in the car or even classroom seating.

  • Firm & Supportive Construction – High-density ILD foam retains its shape for consistent support all day long.

  • Portable & Lightweight – Easy to carry between workstations or take on the go.

 

 

The Sissel Sitting Wedge cushion is an ergonomic seat cushion designed for use on office chairs, dining chairs, car seats or even classroom seating, making it ideal for any environment. Perfect for people with poor posture, sedentary lifestyles or lower back pain, it gently tilts the pelvis forward to encourage healthy spinal alignment and reduce pressure on the lumbar spine. Compact, discreet and highly portable, this posture-correcting cushion is the perfect solution for anyone looking to improve sitting comfort, relieve back strain and support their spine at home, at work or on the go.

 

How It Works

The Sissel Sitting Wedge positions your hips slightly higher than your knees, gently tilting the pelvis forward and maintaining the spine’s natural S-curve. This reduces stress on lumbar muscles and discs while training your body to adopt better sitting habits. Over time, it can help improve core stability, posture and comfort during extended periods of sitting.

 

Materials & Design

  • High-Density ILD Foam Core – Provides firm, reliable support.

  • Durable, Easy-Clean Cover – Designed for everyday use at home, work or on the road.

  • Tapered Size – 35 cm x 35 cm x 2.5 cm at the front / 6 cm at the back for optimal pelvic tilt.

 

 

 

Recommended For:By physiotherapists to support recovery from back issues or to prevent posture-related discomfort
Reducing strain on the lumbar spine, pelvis and hips during long periods of sitting
Encouraging small, continuous movements that strengthen back and abdominal muscles while seated
Upright sitting and proper spinal alignment to help prevent slouching
Material:High-density ILD foam core and cotton durable cover
Size:35cm x 35cm x 2.5cm/6cm
Weight:0.52kg
Contents:1 x Sitting wedge

What is the Sissel Sitting Wedge?
The Sissel Sitting Wedge is an ergonomic seat cushion designed to promote active sitting, tilt the pelvis forward and support a natural spinal alignment. By improving posture and reducing strain on the lower back, it’s ideal for anyone who spends long hours sitting at a desk, in the car or at home.

Who can benefit from using the Sissel Sitting Wedge?
This posture-correcting seat wedge is perfect for office workers, students, drivers, commuters and people recovering from back problems. It’s especially helpful for reducing spinal strain, improving sitting posture and strengthening core and back muscles over time.

Will the Sissel Sitting Wedge fit on all chairs?
Yes. Measuring approximately 35 × 35 cm, the compact design makes it suitable for most standard chairs, including office chairs, dining chairs, classroom chairs and car seats, providing consistent ergonomic support wherever you sit.

Will the Sissel Sitting Wedge improve my posture immediately?
You’ll feel the gentle tilt right away, encouraging an upright sitting position. With regular use, it helps train your body to maintain correct posture naturally, improving core stability and reducing pressure on the lower back.

Can I use the Sissel Sitting Wedge in my car?
Absolutely. The Sissel Sitting Wedge is designed to fit most car seats, making it an ideal choice for commuters, professional drivers or anyone seeking back support and posture correction on the go.

How does the Sissel Sitting Wedge work?
The wedge shape is thicker at the back and thinner at the front, gently angling your hips higher than your knees. This tilt encourages your spine’s natural S-shape, relieves pressure on the lumbar region and promotes better posture, improved comfort and reduced back pain during prolonged sitting.

 

For domestic (United Kingdom) orders we offer 2 delivery options. The majority of items will be sent via Royal Mail 48 tracked service (delivery 3-5 working days), unless otherwise specified. For your peace of mind all our items will be sent with tracking so you can easily keep an eye on your order. For any orders over £55, shipping is free and will be sent with Royal Mail 48.

Shipping Service Service Level Shipping Cost
  Order over £55  FREE
Royal Mail 24 95% Arrive Next Day £6.49
Royal Mail 48 3-5 Working Days. Free for orders over £55. £4.49

We ship all international orders via Royal Mail International. For estimated delivery times and a full list of destinations we ship to, please visit our Delivery Information page.

Discreet Packaging

We go the extra mile to make sure your purchase is carefully wrapped to conceal its contents—only your address will appear, with no mention of what's inside.

 

Returns

If you’re not 100% happy with your purchase you can return it within 30 days of delivery. Whether it’s the wrong size, or you just want to return it, we will be happy to offer an alternative or a refund. We give 30 days (from date of receipt) to return an item.

If the item is faulty/damaged, you’ll receive a FULL refund. However, if the item is no longer suitable or you have changed your mind, a small postage charge of £3.95 will be deducted. Please ensure unwanted items are unopened, unused, and everything is in a re-saleable condition; if the probe has been used, the price of the probe will be deducted from your order. Please get in touch with our Customer Service Team if you have any questions.

FAQ_15367