Yoga Bolster Care: Cleaning, Drying and Refilling

By Premium Yoga Props Shop Online | Published: 2026-10-16

Category: Tips & Care

Learn how to clean a yoga bolster, wash the cover, dry it safely, and refill it to keep its shape. Step-by-step care tips for a fresh, supportive bolster.

Quick answer

To clean a yoga bolster, unzip and remove the cover, machine wash it cold on gentle, and air-dry it away from direct heat. Spot-clean the inner cushion with a damp cloth and mild soap, then let it dry completely before reassembling. Refill only if the filling has compressed or shifted, using the same type of material to maintain firmness.

Why bolster care is different from mat care

A yoga bolster has two parts: a removable cover and an inner cushion filled with cotton, buckwheat, or foam. The cover collects sweat and oils, while the inner cushion provides firm support for restorative poses. Unlike a mat, you cannot soak the entire bolster in water. The filling can clump, mold, or lose its loft if it gets soaked. So the process splits into two tracks: wash the cover often, and clean the inner cushion sparingly.

How often to clean your bolster

Wash the cover after every 4–6 uses if you practice regularly, or more often if you sweat heavily or practice hot yoga. Spot-clean the inner cushion only when you notice stains, odors, or dust. Airing the bolster outdoors in indirect sunlight for an hour once a month helps refresh it between washes. If you have allergies, vacuum the inner cushion with a brush attachment monthly to remove dust mites.

Drying a yoga bolster without damage

Never put a bolster in a dryer. Heat can shrink the cover, melt foam filling, or make cotton fill lumpy. After washing the cover, hang it or lay it flat on a drying rack in a well-ventilated room. For the inner cushion, press it between two towels to absorb surface moisture, then stand it on its end and let it air-dry for 24–48 hours. Flip it halfway through. If it still feels damp inside, give it more time—damp filling leads to mildew.

Refilling a bolster to restore firmness

Over time, cotton or buckwheat filling compresses, making the bolster feel flat. You can restore shape by adding more of the same filling. For buckwheat, simply top it up through the zipper opening. For cotton, you may need to unstitch a seam, add loose cotton, and sew it closed. If the bolster has a foam core, replacement is usually easier than refilling. Check the manufacturer's guidance first—some bolsters are not designed to be opened.

Step-by-step bolster care

Remove the cover: Unzip the cover and pull it off gently. If the zipper is stuck, do not force it—check for fabric caught in the teeth. Checkpoint: Never wash the inner cushion in a machine.
Wash the cover: Machine wash cold on a gentle cycle with mild detergent. Avoid fabric softener and bleach, which can break down fibers. Mistake: Using hot water can shrink the cover.
Spot-clean the inner cushion: Mix a few drops of mild soap with water. Dampen a cloth, wring it out, and wipe the surface. Do not saturate. Checkpoint: If the cushion gets soaked, dry it completely before use.
Dry the cover: Hang or lay the cover flat to air-dry. Avoid direct sunlight and radiators, which can fade colors and weaken elastic. Mistake: Tossing the cover in a dryer causes shrinkage.
Dry the inner cushion: Press between towels to remove surface moisture, then stand on end in a ventilated area for 24–48 hours. Flip halfway. Checkpoint: Feel for dampness before reassembling.
Refill if needed: If the bolster feels flat, add more filling of the same material. For cotton, open a seam, add filling, and stitch closed. Mistake: Mixing fillings can create lumps and uneven support.
Reassemble and store: Once both parts are fully dry, put the cover back on and zip it closed. Store in a cool, dry place away from direct sun. Next step: Rotate your bolster regularly to prevent permanent compression.

Product facts

PUre Align Yoga Mat: PUre Align Yoga Mat is made from 100% natural rubber and was developed over 26 months to solve slipping issues. A reliable, non-slip mat supports your bolster practice by keeping your base stable during restorative poses.