How To Remove Vomit Smell From Mattress: Simple, Effective Steps That Work

If you’re searching for “How To Remove Vomit Smell From Mattress,” you’re probably dealing with a fresh accident or a lingering odor that won’t go away. This guide walks you through what to do step by step, why certain methods work, and how to prevent that sour smell from coming back.

Why does vomit smell linger in a mattress?

Mattresses are thick, porous, and full of layers that can soak up liquid and odor. Vomit contains acids and food particles that can seep below the surface, so even if the stain looks gone, the smell can stay trapped inside the foam or padding.

That’s why acting quickly and using the right cleaning steps matters. Simply spraying air freshener or covering the smell usually won’t solve the problem.

How To Remove Vomit Smell From Mattress: Step-by-Step

1. Remove solids and blot the area

  1. Gently scoop up any solid material using paper towels or a disposable cloth.
  2. Use clean, dry towels to blot (not rub) the damp area.
    Rubbing can push liquid deeper into the mattress.

🔹 Key tip: Work from the outside of the stain toward the center to avoid spreading it.

2. Use a mild cleaning solution

You don’t need anything harsh. A simple soap-and-water mix can help:

  • Mix a small amount of gentle liquid soap with warm water.
  • Lightly dampen a clean cloth with the solution.
  • Blot the stained area, avoiding soaking the mattress.
  • Follow with a separate cloth dampened with plain water to remove any soap residue.

This helps remove leftover particles that contribute to the odor.

3. Neutralize the odor with baking soda

Baking soda is widely used to absorb odors from soft furnishings, including mattresses.

  1. Once the area is only slightly damp, sprinkle a generous layer of baking soda over the spot.
  2. Gently press it into the surface with your hand.
  3. Let it sit for several hours, or ideally overnight.

As the baking soda dries, it helps draw out moisture and odor from the mattress.

  1. Vacuum the baking soda thoroughly using the upholstery attachment, going over the area several times.

4. Let the mattress air out

After vacuuming, allow as much airflow as possible:

  • Open windows if you can.
  • If available, use a fan directed at the mattress.
  • Keep bedding off until the mattress is completely dry and smells fresher.

Good ventilation helps the remaining moisture and odor dissipate more quickly.

What if the vomit smell is still there?

Sometimes, especially if the vomit has soaked deep into the mattress or sat for a long time, one cleaning round may not be enough.

Can I repeat the cleaning process?

Yes. You can:

  • Repeat the blot–clean–baking soda–vacuum steps.
  • Focus on keeping the mattress only lightly damp each time to avoid over-soaking.

When is it time to consider deeper cleaning?

You may want to consider a deeper clean or professional help if:

  • The vomit smell is still strong days later.
  • The mattress was very thoroughly soaked.
  • There are multiple stained or affected areas.

Professional cleaners often use tools that can extract more moisture and odor from deep inside a mattress than typical home methods.

Is it safe to sleep on the mattress afterward?

Most people prefer to wait until:

  • The mattress is fully dry to the touch.
  • There is no noticeable odor at normal room distance.
  • Fresh, clean bedding has been put on.

If any smell remains, many sleepers find it more comfortable to sleep elsewhere until it improves.

How can I prevent vomit smells from soaking into my mattress in the future?

A major way to avoid dealing with How To Remove Vomit Smell From Mattress again is to reduce how much reaches the inner layers.

Here are simple preventive steps:

  • Use a water-resistant mattress protector that covers the top surface.
  • Place an extra washable cover or pad on top for added protection.
  • Clean up spills or accidents as soon as you notice them, rather than letting them dry in place.
  • Air out your mattress periodically by removing bedding and opening windows.

Common mistakes to avoid when cleaning vomit from a mattress

❌ Scrubbing harshly – pushes the mess and odor deeper.
❌ Over-soaking the mattress – can lead to lingering dampness and more odor.
❌ Using strong fragrances to “cover up” the smell – may mix with the odor instead of removing it.
❌ Skipping the drying step – moisture can stay trapped, prolonging the smell.

✅ Quick Mattress Takeaways

Key points about How To Remove Vomit Smell From Mattress:

  • Act fast: Remove solids and blot liquid right away to limit odor.
  • Clean gently: Use a mild soap-and-water solution and avoid soaking the mattress.
  • Deodorize: Baking soda is a simple, commonly used way to absorb lingering smells.
  • Dry completely: Airflow and time are essential to remove moisture and odor.
  • Repeat if needed: Stubborn smells may require more than one cleaning cycle.
  • Prevent future issues: A protective cover and quick cleanup make accidents easier to handle.

Handled calmly and step by step, How To Remove Vomit Smell From Mattress becomes manageable, and your bed can feel fresh and comfortable again.