Quick Answer: The Health Guard Cool Silk mattress protector uses a silky-feel polyester fabric (not actual silk) with a breathable waterproof membrane, deep 18-inch pockets, and thermo-regulating properties. It is quieter and cooler to touch than basic protectors, making it a solid mid-range choice for Canadians who want waterproof protection without sacrificing sleep comfort. Available at National Mattress, Linen Chest, and specialty bedding retailers.
In This Guide
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What Is the Health Guard Cool Silk?
The Health Guard Cool Silk is one of the mid-tier models in the Health Guard mattress protector line. Health Guard has been making bed protection products in Canada since 1991, and the Cool Silk sits between their entry-level options and their premium natural-fibre models like the Bamboo and Tencel.
Despite the name, the Cool Silk is made from silky-feel polyester rather than actual silk. This is standard practice in the bedding industry, where "silk" refers to a smooth texture rather than the fibre origin. The fabric is designed to feel smoother and more refined than standard cotton or terry protectors, which tend to have a coarser texture against the sheet.
The protector features a waterproof backing membrane and is designed to be thermo-regulating, quieter than vinyl-based covers, and comfortable enough that you forget it is there.
Features Breakdown
Fabric and Feel
The Cool Silk's top surface uses a smooth polyester that Health Guard describes as softer, stronger, and more durable than regular cotton. In practice, it does feel noticeably smoother than terry-topped protectors. Under a fitted sheet, this difference is mostly imperceptible, but it matters if you sleep with minimal sheet coverage.
The fabric is lightweight and does not add meaningful bulk to your mattress surface. It sits flat and does not bunch or shift under your sheets the way some older-style covers do.
Waterproofing
The waterproof membrane on the Cool Silk is breathable rather than solid vinyl. Older waterproof covers used a non-breathable vinyl layer that created heat retention and the distinctive crinkle sound. The breathable membrane on modern Health Guard protectors allows air exchange while still blocking liquids, which means less heat buildup and a much quieter cover.
For most household waterproofing needs, including spills, pet accidents, and sweat absorption, the Cool Silk performs well.
Why Breathable Membranes Matter: Research on sleep surface temperature found that non-breathable covers can raise the sleep surface temperature by several degrees compared to breathable alternatives. A 2018 study in Applied Ergonomics noted that even modest increases in sleep surface temperature can reduce slow-wave sleep duration and increase nighttime waking. Breathable waterproof membranes help maintain a more comfortable sleep microclimate.
Deep 18-Inch Pockets
The Cool Silk features deep 18-inch pockets, which accommodate most mattress profiles including thicker hybrid and memory foam mattresses. Standard protectors with 10-12 inch pockets fit older or thinner mattress profiles but can pull off or bunch on newer deep-profile mattresses. If your mattress is 14 inches or deeper, the 18-inch pockets are a meaningful advantage.
Thermo Regulation
Health Guard describes the Cool Silk as thermo-regulating. In practice, this means the fabric does not actively heat up in contact with body warmth the way some synthetics do. It is not a phase-change or active cooling material like you would find in the Cool Ice model, but it also does not worsen heat retention the way a non-breathable cover would.
For moderate sleepers who are not particularly hot or cold by nature, the Cool Silk's thermal neutrality is usually sufficient.
| Feature | Cool Silk | Bamboo | Cool Ice |
|---|---|---|---|
| Top fabric | Silky polyester | Bamboo-derived fibre | Cooling yarn blend |
| Natural fibre | No | Partially | No |
| Waterproof | Yes | Yes | Yes |
| Breathable membrane | Yes | Yes | Yes |
| Active cooling | No | No | Yes |
| Best for | Value, basic protection | Natural fibres, warmth | Hot sleepers |
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Cool Silk vs Bamboo and Tencel: Which to Choose?
Within the Health Guard range, the Cool Silk, Bamboo, and Tencel models all offer waterproof protection with breathable membranes. The differences come down to the top fabric and its properties.
The Bamboo model uses bamboo-derived fabric, which is naturally more moisture-wicking than polyester and has a softer feel against bare skin. The Tencel model uses lyocell, which is even more effective at moisture management and is gentler on sensitive skin. Both cost more than the Cool Silk.
If you sleep at a moderate temperature, do not have skin sensitivities, and primarily need waterproof protection for peace of mind, the Cool Silk offers good value. The difference in performance between it and the premium natural-fibre models is meaningful primarily for hot sleepers and people with sensitive skin.
Dorothy, Sleep Specialist at Mattress Miracle: "The honest answer is that most people who aren't hot sleepers and don't have skin sensitivities won't notice much difference between a Cool Silk and a Bamboo protector once their sheets are on. Where it matters is if you run warm at night or have eczema or sensitive skin. Then the natural-fibre options are worth the upgrade."
Who Should Buy the Health Guard Cool Silk
The Cool Silk is a good fit if you:
- Want reliable waterproof protection at a competitive price
- Need deep pockets for a thicker mattress profile
- Prefer a smooth, quiet cover over a thicker terry-topped protector
- Are a moderate sleeper who does not run particularly hot
- Are protecting a guest room mattress or children's bed
It is less suitable if you:
- Sleep very hot and need active cooling features
- Have sensitive skin and prefer natural fibres against your body
- Have allergies and specifically need dust mite barrier protection (the Barrier Guard model is better for this)
At Mattress Miracle in Brantford, we can help you think through which protector model fits your sleep situation. The right protector depends on your mattress, your sleep temperature, and what you are primarily protecting against. It is a short conversation, but it makes a real difference in what you end up with. Stop in at 441 1/2 West Street or call (519) 770-0001.
Care and Maintenance
Health Guard protectors are designed to be machine washable. The Cool Silk should be washed in warm water and tumble dried on a low to medium heat setting. High heat can damage the waterproof membrane over time, so avoiding hot dryer cycles extends the protector's useful life.
Washing frequency depends on use. For a mattress you sleep on every night, washing every two to four weeks is reasonable. For guest beds, washing before and after each use is sufficient.
Do not dry clean or use bleach on waterproof mattress protectors. Solvents and bleach degrade the waterproof membrane.
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We are a family-owned mattress store in Brantford, helping our community sleep better since 1997. Come try mattresses in person and get honest, no-pressure advice.
441 1/2 West Street, Brantford, Ontario
Call 519-770-0001Frequently Asked Questions
Is the Health Guard Cool Silk made from real silk?
No. The Cool Silk uses a silky-feel polyester fabric rather than actual silk. This is standard in the bedding industry, where "silk" refers to a smooth texture. The feel is softer and smoother than standard cotton protectors, but it is a synthetic fabric.
Is the Health Guard Cool Silk waterproof?
Yes. The Cool Silk features a breathable waterproof membrane that blocks liquids while allowing air to pass through. This makes it quieter and cooler than older vinyl-backed covers while still providing reliable waterproof protection.
What mattress depth does the Cool Silk fit?
The Cool Silk features deep 18-inch pockets, which fit most standard, pillow-top, and thick hybrid or memory foam mattress profiles. Most mattresses are between 8 and 16 inches deep, so the 18-inch pockets provide extra flexibility.
How does the Health Guard Cool Silk compare to the Bamboo model?
Both offer waterproof protection with breathable membranes. The Bamboo model uses bamboo-derived fibre, which is more naturally moisture-wicking and better suited for warm sleepers. The Cool Silk uses silky polyester and is typically less expensive. For moderate sleepers without temperature issues, the Cool Silk is adequate. Hot sleepers benefit from the Bamboo or Tencel upgrade.
Where can I buy the Health Guard Cool Silk in Canada?
Health Guard protectors are available at National Mattress, Linen Chest, Modern Mattress, and other Canadian bedding retailers. Availability varies by location and season. Contact your local mattress or bedding retailer to confirm stock.
Sources
- Health Guard. Cool Silk Mattress Protector Product Information. healthguard.com
- National Mattress Canada. HealthGuard Cool Silk Waterproof Mattress Protector. nationalmattress.ca
- Okamoto-Mizuno, K. & Mizuno, K. (2018). "Effects of thermal environment on sleep and circadian rhythm." Applied Ergonomics, 68, 12-19.
- Asthma Society of Canada. Indoor Allergen Reduction. asthma.ca
Visit Our Brantford Showroom
We are located at 441½ West Street in downtown Brantford. Free parking available. Our team does not work on commission, so you get honest advice based on your needs.
Mattress Miracle , 441½ West Street, Brantford, ON · (519) 770-0001
Hours: Monday–Wednesday 10am–6pm, Thursday–Friday 10am–7pm, Saturday 10am–5pm, Sunday 12pm–4pm.