Lumbar Pillow Guide: Decorative vs Support Pillows, Sizes, Fill and Styling

Search for a “lumbar pillow” and you will find two very different products. One is a long, narrow accent pillow that makes a sofa or bed look finished. The other is a cushion that sits behind your lower back to make a chair or car seat more comfortable. They share a name and a shape, but they do different jobs. Knowing which one you want saves you from buying a pretty pillow that does nothing for your back, or a firm support cushion that looks out of place on your bed.

This article is part of our bedding guide, where you can compare related options.

This guide explains both types, common sizes, fills and covers, how to style a decorative lumbar pillow and what to check in a support cushion. It does not make medical claims. If you have ongoing back pain, talk to a doctor or physical therapist. I wrote this guide from general knowledge, so confirm sizes against the product you plan to buy.

What Is a Lumbar Pillow?

The word “lumbar” refers to the lower back. A decorative lumbar pillow is a rectangular accent pillow, usually longer than it is tall. It is also called a rectangle or oblong pillow. A lumbar support pillow is a cushion shaped to fill the natural curve of your lower back when you sit or lie down.

Decorative Lumbar Pillows

Decorative lumbar pillows add color, texture and shape. They are popular on beds, sofas, armchairs and benches.

Common sizes: many are about 12 by 20 inches, 14 by 20 inches or 12 by 24 inches. Sizes vary by brand, so check the listing. A long pillow can sit in front of two square pillows on a sofa or lie across the center of a bed.

Where to use them: On a bed. Place one in front of the sleeping pillows or at the foot as an accent. A lumbar pillow centered on the bed adds a finishing touch. On a sofa. Put one in the middle with a square pillow on each side, or use one at each end. On an armchair. One pillow adds color and supports your back a little. On a bench or window seat. Adds softness. On an outdoor seat. Use weather-resistant fabric.

Styling tips: Mix sizes and shapes. Pair a lumbar pillow with square pillows in two sizes. Repeat a color from a rug or art. Mix textures: velvet, linen, boucle, knit and embroidery. See the boucle chair guide. Use odd numbers of pillows on a sofa, such as three or five. Keep a pattern balanced with a solid color. Do not overload the sofa. Leave room for people to sit.

Lumbar Support Pillows

A lumbar support pillow helps people who sit for a long time, such as office workers, drivers and students. It fills the gap between your lower back and the chair, which can feel more comfortable if your chair does not support the curve of your spine.

Fills: memory foam. Firm, contoured and holds its shape; polyester fiber. Softer, lighter and less supportive; mesh or gel-foam designs. Add airflow.

Features to check: Size and thickness. It should fit the chair and your back, without pushing you forward. Firmness. Firm enough to support, soft enough to stay comfortable. Strap. An adjustable strap keeps it from sliding down the chair. Cover. Removable and washable is best. Breathability. Mesh covers feel cooler. Shape. Some are D-shaped, some wedge-shaped, some rolled.

Test it in the chair where you will use it. A cushion that works in a car may not suit a desk chair. If you use a standing desk or a monitor stand, make sure your whole setup supports good posture. See the monitor stand guide.

For back pain, talk to a doctor or a physical therapist before relying on a cushion. A pillow cannot replace medical advice.

Using a Lumbar Pillow in Bed

Some people place a small pillow under their lower back when lying on their back, or between their knees when side sleeping. These are comfort habits, not medical treatments. If you have back problems, ask a professional about positions that suit you.

Choosing Fill

Polyester fiberfill. Low cost, washable, hypoallergenic in many cases. Can flatten. Feather and down. Soft, plump and lofty. May not suit people with allergies. Can poke through. Down alternative. Mimics down without the feathers. Memory foam. Firm support. Can run warm. Shredded foam. Moldable and adjustable. Buckwheat or other natural fills. Moldable but heavier and noisy.

For decorative pillows, polyester or down alternative is practical. For support pillows, memory foam is common.

Covers and Fabrics

Key points: cotton and linen. Breathable and easy to wash; velvet. Luxurious, but shows pressure marks; boucle and chenille. Cozy and textured, but can snag; faux leather. Wipes clean; outdoor fabrics. Resist sun and water.

Choose removable covers with zippers or envelope closures, so you can wash them. Check the care label.

How to Care for a Lumbar Pillow

Wash the cover according to the care tag. Spot clean the insert, or wash it if the label allows. Foam usually cannot go in the washer. Dry fully to prevent mildew. Fluff and shake decorative pillows to restore shape. Air support cushions in a well-ventilated spot. Replace flat inserts. If a pillow stays flat, buy a new insert.

Sizing the Insert

For a plump look, buy an insert slightly larger than the cover. A 12 by 20 cover looks best with a 13 by 21 insert, for example. A snug fit makes the pillow look full. Check the product details, because some covers are made for the exact size.

How to Choose a Lumbar Pillow

Decide: decorative accent or back support? Choose the size for your bed, sofa or chair. Pick the fill that suits comfort and allergies. Choose a washable cover. Match color and texture to your room (for decor), or choose firmness and shape (for support). Check the return policy for support cushions. Read reviews.

What mistakes should you avoid?

A few common mistakes are worth avoiding: buying a decor pillow for back support (it may be too soft); choosing a support cushion that pushes you too far forward; choosing a cover that cannot be washed; overstuffing the sofa with pillows; buying a small insert for a large cover (it will look flat); ignoring allergies when choosing fill.

Frequently Asked Questions

What size is a lumbar pillow?

Decorative ones are often about 12 by 20 inches or 14 by 20 inches. Support cushions vary.

Can a lumbar pillow help my back?

It may add comfort when sitting. For pain, talk to a doctor.

Where do I put a lumbar pillow on a bed?

Usually at the center, in front of the sleeping pillows.

Are lumbar pillows washable?

Many covers are. Check the tag. Foam inserts usually are not.

What fill is best?

Polyester or down alternative for decor, memory foam for support.

What is the difference between a lumbar pillow and a bolster?

A lumbar pillow is a flat rectangle. A bolster is a long cylinder.

How many pillows should I put on a sofa?

Three to five is common. Leave room to sit.

Conclusion

A lumbar pillow can mean a style accent or a comfort cushion. Decide which one you need, choose the right size, fill and cover and keep it clean. For decor, mix textures and sizes. For support, pick a firm, well-fitting cushion and check how it feels in your chair.

If you have back pain, ask a professional. With the right choice, a lumbar pillow adds comfort and style to your space.

Related guides

Floor Pillows Guide: Sizes (20 to 32 Inches), Fill Types, Meditation Cushions, Covers and CleaningQuick answer: floor pillows are large cushions for sitting on the floor. A 24 inch square suits living room…Read more →Headboard Pillow: Wedge Backrest Sizes, Fill, Covers and How to Pick OneA headboard pillow, also called a wedge or bed backrest pillow, is a large triangular cushion that sits between…Read more →Best Cooling Pillow: Latex, Shredded Foam and Gel ComparedLatex and shredded fills tend to run coolest, gel-infused or graphite memory foam sits in the middle and…Read more →Kids Couch Guide: Safety, Foam Density, Washable Covers, Sizes and Modular Play CouchesQuick answer: a good kids couch has rounded edges, non-toxic high-density foam, a washable removable cover and…Read more →