Can I Put Waterproof Mattress Cover In Dryer? Safe Care Guide & FAQs

If you’re asking “Can I put waterproof mattress cover in dryer?”, you’re not alone. Waterproof protectors can be tricky to dry, and treating them the wrong way can damage the waterproof layer or shrink the fabric. This FAQ-style guide walks through what you can and can’t do, and how to keep your cover working properly for as long as possible.

Can I Put Waterproof Mattress Cover In Dryer At All?

Sometimes yes, but only if the care label allows it.

Most waterproof mattress covers are made from a fabric layer (like cotton or polyester) bonded to a waterproof membrane (often polyurethane). High heat can:

  • Melt or crack the waterproof layer
  • Cause peeling or bubbling
  • Shrink the fabric and affect the fit

Before you decide, always read the care label on the cover. It will usually say one of the following:

  • “Tumble dry low” or “tumble dry on low heat”
  • “Line dry only” or “air dry only”
  • “Do not tumble dry”

If your label specifically says tumble dry low, you can generally use the dryer on a low-heat or delicate setting.

What Dryer Settings Are Safest?

If the care instructions allow it, use the gentlest settings possible to protect the waterproof backing.

Recommended approach

  • Heat setting: Low heat or “delicate”
  • Cycle: Short cycles, checking periodically
  • Extras: Use a few clean towels to help absorb moisture and reduce friction

Avoid:

  • High heat
  • Long, hot cycles
  • Dryer settings meant for heavy items like towels or bedding on high

These can overheat the waterproof layer and cause it to break down.

What If The Label Says “Do Not Tumble Dry”?

If the label says “Do not tumble dry”, then do not put the waterproof mattress cover in the dryer. In this case, stick to air drying, which is much gentler on the waterproof membrane.

How to air dry a waterproof mattress cover

  • Hang it over a clothesline or drying rack in a well-ventilated room or shaded outdoor area
  • Avoid direct, intense sunlight for long periods, which can age some materials
  • Allow both sides to dry completely before putting it back on the bed
  • If it’s dripping wet, gently press out excess water without wringing, which can stress seams and the membrane

Air drying usually takes longer, but it helps keep the cover effective and soft.

Will The Dryer Ruin The Waterproof Layer?

It depends on heat and time. The hotter and longer the cover is in the dryer, the greater the risk of:

  • Peeling or flaking of the inner waterproof coating
  • Cracking or stiffening of the membrane
  • Noise increase, where the protector feels crinklier

If you want to use the dryer but protect the cover:

  • Stick to low heat only
  • Remove promptly when it’s just dry to the touch
  • Let it finish airing out on a rack if any damp spots remain

If you ever notice peeling, cracking, or a change in waterproof performance, continued high-heat drying may be part of the cause.

How Do I Know If My Cover Is Fully Dry?

A waterproof mattress cover can feel dry on the outside but still be damp inside. Make sure:

  • The fabric side feels dry with no cool, damp patches
  • The underneath (waterproof side) is not cool or tacky to the touch
  • Seams and corners feel fully dry

If in doubt, let it air dry a bit longer on a rack or over a chair. Putting a slightly damp protector back on the mattress can trap moisture against your mattress surface.

How Often Should I Wash And Dry A Waterproof Mattress Cover?

How often you wash it depends on how it’s used:

  • Every 1–2 months for regular use without spills
  • Immediately after spills, accidents, or heavy sweating
  • More frequently in hot climates or if used by children or pets

Frequent washing and drying on gentle settings is usually fine, as long as you follow the care label. Over time, though, any waterproof backing can gradually wear down, especially if exposed to high heat.

✅ Quick Mattress Takeaways

Key points consumers should understand about “Can I put waterproof mattress cover in dryer”

  • Always check the care label first – it tells you if the cover is dryer-safe.
  • If allowed, use low heat or a delicate setting and avoid high heat.
  • If the label says “Do not tumble dry,” stick to air drying only.
  • High heat can damage the waterproof membrane, causing peeling, cracking, or loss of protection.
  • For air drying, hang in a ventilated area and let both sides dry fully before use.
  • Do not wring aggressively; gently press out extra water instead.
  • If you’re unsure, treat the cover like a delicate item and avoid heat.

Caring for a waterproof mattress cover is mostly about protecting the hidden waterproof layer. When you understand whether and how you can put your waterproof mattress cover in the dryer—and use gentler settings when you do—you help your protector last longer and keep your mattress better shielded from spills and everyday wear.