Introducing the Sealy Advantage Cristal Medium King Single Mattress, a premium choice for a comfortable and supportive sleep experience. This mattress is equipped with features that enhance its quality and durability. The Premium Fibre and Cushioning Foam layers provide a plush and cozy feel, ensuring a restful night's sleep. The 1 Stage CoreSupport technology offers superior support to your body, promoting proper spinal alignment and reducing pressure points. The EdgeGuard feature reinforces the mattress edges, preventing sagging and increasing the overall stability of the mattress. Additionally, the Health Shield technology protects against allergens, dust mites, and bacteria, ensuring a clean and healthy sleeping environment. With its medium firmness level, this mattress strikes the perfect balance between comfort and support. Whether you are a side, back, or stomach sleeper, the Sealy Advantage Cristal Medium King Single Mattress caters to your individual needs, providing a rejuvenating and refreshing sleep every night. Upgrade your sleep experience with this top-quality mattress that combines comfort, support, and durability.
Introducing the Sealy Advantage Cristal Medium King Single Mattress, a premium choice for a comfortable and supportive sleep experience. This mattress is equipped with features that enhance its quality and durability. The Premium Fibre and Cushioning Foam layers provide a plush and cozy feel, ensuring a restful night's sleep. The 1 Stage CoreSupport technology offers superior support to your body, promoting proper spinal alignment and reducing pressure points. The EdgeGuard feature reinforces the mattress edges, preventing sagging and increasing the overall stability of the mattress. Additionally, the Health Shield technology protects against allergens, dust mites, and bacteria, ensuring a clean and healthy sleeping environment. With its medium firmness level, this mattress strikes the perfect balance between comfort and support. Whether you are a side, back, or stomach sleeper, the Sealy Advantage Cristal Medium King Single Mattress caters to your individual needs, providing a rejuvenating and refreshing sleep every night. Upgrade your sleep experience with this top-quality mattress that combines comfort, support, and durability.
in 2 offers
The lowest price for Sealy Advantage Cristal Medium King Single Mattress right now is $631.00 at Appliances Online Australia, compared across 2 retailers.
The all-time low was $532.00 on 30 May 2025 — today's price is 19% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 4 Nov 2026.
Sealy Advantage Cristal Medium King Single Mattress
Introducing the Sealy Advantage Cristal Medium King Single Mattress, a premium choice for a comfortable and supportive sleep experience. This mattress is equipped with features that enhance its quality and durability. The Premium Fibre and Cushioning Foam layers provide a plush and cozy feel, ensuring a restful night's sleep. The 1 Stage CoreSupport technology offers superior support to your body, promoting proper spinal alignment and reducing pressure points. The EdgeGuard feature reinforces the mattress edges, preventing sagging and increasing the overall stability of the mattress. Additionally, the Health Shield technology protects against allergens, dust mites, and bacteria, ensuring a clean and healthy sleeping environment. With its medium firmness level, this mattress strikes the perfect balance between comfort and support. Whether you are a side, back, or stomach sleeper, the Sealy Advantage Cristal Medium King Single Mattress caters to your individual needs, providing a rejuvenating and refreshing sleep every night. Upgrade your sleep experience with this top-quality mattress that combines comfort, support, and durability.
Introducing the Sealy Advantage Cristal Medium King Single Mattress, a premium choice for a comfortable and supportive sleep experience. This mattress is equipped with features that enhance its quality and durability. The Premium Fibre and Cushioning Foam layers provide a plush and cozy feel, ensuring a restful night's sleep. The 1 Stage CoreSupport technology offers superior support to your body, promoting proper spinal alignment and reducing pressure points. The EdgeGuard feature reinforces the mattress edges, preventing sagging and increasing the overall stability of the mattress. Additionally, the Health Shield technology protects against allergens, dust mites, and bacteria, ensuring a clean and healthy sleeping environment. With its medium firmness level, this mattress strikes the perfect balance between comfort and support. Whether you are a side, back, or stomach sleeper, the Sealy Advantage Cristal Medium King Single Mattress caters to your individual needs, providing a rejuvenating and refreshing sleep every night. Upgrade your sleep experience with this top-quality mattress that combines comfort, support, and durability.
Last updated at 04/11/2026 20:41:20
Sealy Advantage Cristal Medium King Single Mattress 905686
Free delivery by Sat
Sealy Advantage Cristal Medium King Single Mattress 905686
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on appliancesonline.com.au
I bought it because it matches with my Sealy mattress perfectly. The base really gives lots of the right support to the mattress. I can feel the weight and pressure of the mattress being distributed across the whole bed. It is a must for premium comfort. The designer legs are so helpful and clever. They give me enough space to vacuum underneath. And they are helpful for one person to move the bed when I need to move the bed to retrieve dropped items underneath. Overall it is an excellent bed base. Very happy with this purchase. Highly recommended.
originally posted on appliancesonline.com.au
Not the best matress I have slept on but good enough for me. Less back pain. Firm.
originally posted on appliancesonline.com.au
Excellent service and a great bed. It has already relieved my lower back pain. Easy to move.
| Firmness Level | Medium |
| Type | Mattress |
| Length | 2030 mm |
| Width | 915 MMT |
| Certifications | Supporting The Australian Bedding Stewardship Council |
Sealy Advantage Cristal Medium King Single Mattress 905686
Free delivery by Sat
Sealy Advantage Cristal Medium King Single Mattress 905686
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
I bought it because it matches with my Sealy mattress perfectly. The base really gives lots of the right support to the mattress. I can feel the weight and pressure of the mattress being distributed across the whole bed. It is a must for premium comfort. The designer legs are so helpful and clever. They give me enough space to vacuum underneath. And they are helpful for one person to move the bed when I need to move the bed to retrieve dropped items underneath. Overall it is an excellent bed base. Very happy with this purchase. Highly recommended.
Not the best matress I have slept on but good enough for me. Less back pain. Firm.
Excellent service and a great bed. It has already relieved my lower back pain. Easy to move.
Hi very happy with my double medium bed I bought the base as well. Best things quick delivery free shipping. Had old bed well over twenty years if this last half that will be great value.
Way too soft.No edge supportLots of partner disturbanceWay too hot.My old mattress was 8 years old and was still better than this new one.I won’t buy again!
After doing some research and looking at many options we decided to go with the Sealy Advantage Cristal Medium King Mattress for so many reasons.The reviews were great, the mattress came in under budget and fit all of our needs.Very comfortable, well manufactured mattress, on the firmer side of medium but not uncomfortably so. I have a lot of back pain and now being pregnant, it has only increased and this has helped a lot.My fiancé has always preferred a more plush mattress but has said he’s sleeping a lot better now and doesn’t wake up aching anymore.So if you are on a budget, want a good quality mattress that ticks all the boxes from a reputable brand then this is the one!
It’s an amazing product with lot of comfortable especially for a person with back pain.
The mattress is comfortable and I knew from Sealy it would be good quality,..love the fact that Appliances Online remove old mattress,...hassle free !!!!!
The listed size of this mattress was 240mm when it arrived it measured 280mm and is far to high for my needs making it difficult to get into bed as the total height including the base without the gliders is 600mm. Not good when you are only 5 ft tall.
Great bed. I bought this for my teenager son. He loves it. Just the right size and right comfort. The materials are breathable. The support is just right. I also bought the matching bed base. They work seamlessly together. Very happy shopping experience!
| Firmness Level | Medium |
| Type | Mattress |
| Length | 2030 mm |
| Width | 915 MMT |
| Certifications | Supporting The Australian Bedding Stewardship Council |
