How to Remove Vomit from Mattress

Vomit on Mattress: Act Fast, Don't Over-Wet

Vomit on a mattress is one of the most urgent cleaning situations — the stomach acid can damage foam and fabric quickly, and over-wetting can cause mold to grow inside the mattress. The approach is similar to urine removal: absorb as much as possible immediately, use enzyme cleaner to break down biological compounds, and baking soda to absorb moisture and odor. Speed and restraint with liquids are both essential.

What You'll Need

• Rocco & Roxie Stain & Odor Eliminator Bundle
• Heinz White Vinegar
• Baking soda (generous amount)
• Dawn Ultra Dish Soap
• Microfiber cloths or old towels
• SafeRest Waterproof Mattress Protector (for future prevention)
• Vacuum
• Fan or hair dryer (cool setting)

Step-by-Step: Removing Vomit from Mattress

1. Remove solid material immediately. Use gloves and paper towels to remove as much solid vomit as possible. Work from the outside in. Dispose immediately.
2. Blot up liquid. Press clean microfiber cloths firmly onto the stain to absorb as much moisture as possible. The more you absorb now, the less soaks into the mattress foam.
3. Sprinkle baking soda generously over the entire affected area. Baking soda absorbs remaining moisture and neutralizes stomach acid odor immediately. Leave for 15–20 minutes, then vacuum thoroughly.
4. Apply white vinegar. Spray Heinz White Vinegar lightly over the stained area — don't over-saturate. The acidity neutralizes alkaline bile compounds and odor. Let sit 5 minutes, then blot dry.
5. Apply Rocco & Roxie Enzyme Cleaner. Spray Rocco & Roxie Stain & Odor Eliminator over the stained area. The enzyme formula breaks down proteins, bile, and food residue. Let sit 15–20 minutes.
6. Blot dry thoroughly with clean cloths. Remove as much moisture as possible — this is critical for mattresses to prevent mold.
7. Apply Dawn dish soap mixed with a small amount of cold water for any remaining fatty residue. Work in gently and blot dry.
8. Final baking soda layer. Cover the entire cleaned area with a thick layer of baking soda. Leave for 8 hours or overnight to absorb all remaining moisture and odor.
9. Vacuum thoroughly and allow to air dry completely with windows open and a fan running. Use a hair dryer on cool setting to speed up drying if needed.

For Dried Vomit on Mattress

1. Scrape off any dried material carefully with a spoon.
2. Vacuum thoroughly to remove loose particles.
3. Apply white vinegar lightly to rehydrate the dried stain. Blot after 5 minutes.
4. Apply Rocco & Roxie Enzyme Cleaner and let sit 30 minutes.
5. Blot dry, apply baking soda, leave overnight, then vacuum.

Prevent Future Accidents: Mattress Protector

A SafeRest Waterproof Mattress Protector is the single best investment for protecting your mattress from vomit, urine, and other liquid accidents. It creates a waterproof barrier that prevents any liquid from reaching the mattress, is machine washable, and fits like a standard fitted sheet. One serious vomit accident can permanently damage a mattress — a protector eliminates this risk entirely.

Frequently Asked Questions

How do I get vomit smell out of a mattress permanently?

The odor comes from biological compounds that need enzyme treatment to break down. Rocco & Roxie Enzyme Cleaner combined with baking soda eliminates the odor at the source. Allow the mattress to dry completely — any remaining moisture will cause the odor to return.

How long does a mattress take to dry after vomit cleaning?

A mattress can take 8–12 hours or more to dry completely. Use a fan, open windows, and a hair dryer on cool setting to speed up drying. Never put sheets back on a damp mattress — it will develop mold inside the foam.

Can stomach acid from vomit permanently damage a mattress?

Yes — if left untreated, stomach acid can break down foam and fabric fibers over time. Act immediately to remove vomit and neutralize the acid with baking soda and white vinegar. A waterproof mattress protector prevents this damage entirely.