Zinus Sleep Master Ultima Comfort Memory Foam 8 Inch Mattress, King
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- Conforming memory foam comfort and support for a refreshing night's sleep
- Mattress layers include: 2 inches Memory Foam, 2 inches Pressure Relieving Comfort Foam, and 4 inches High-density Base Support Foam
- The latest evolution of memory foam, BioFoam, replaces some of the traditional petroleum with natural plant oil to help keep your mattress fresh
- Only the Highest Quality of Foam - Foam is CertiPUR-US Certified for durability, performance, and content
- Smartly Shipped - Our patented technology allows our mattresses to be efficiently compressed, rolled and shipped in a box conveniently to your door
|What you need to know – All mattresses shipped by Amazon.com between November 1st and December 31st may be returned until January 31st unless an extended return policy is noted in the product details. If the mattress has been opened, please call customer service at 1-888-280-4331 to arrange for the item to be picked up at your convenience.|
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From the manufacturer
Our patented compression technology allows our mattresses to be efficiently compressed, rolled and shipped in a box conveniently to your door via FedEx/UPS.
|SmartBase Mattress Foundation||Standing Smart Box Spring||Deluxe Faux Leather Platform Bed||BiFold Box Spring||Compack Bed Frame|
|Height||14 Inches||14 Inches||14 Inches||9 Inches||7 Inches|
|Structure||Steel Frame||Steel Frame with Cover||Faux Leather with Wood Slats||Steel Frame with Cover||Steel Frame|
|Assembly||Easy Assembly||Assembly Required||Assembly Required||No Assembly Required||Easy Assembly|
|Required Accessories||N/A||N/A||N/A||Bed Frame||Box Spring|
|Available sizes||Twin, TwinXL, Full, Queen, King, Cal King||Twin, Full, Queen, King||Full, Queen, King||Twin, TwinXL, Full, Queen, Split King, Split Cal King||Twin, Full, Queen, King, Cal King|
|Delivery||Home delivery via UPS/FedEx||Home delivery via UPS/FedEx||Home delivery via UPS/FedEx||Home delivery via UPS/FedEx||Home delivery via UPS/FedEx|
|Warranty||Worry Free 5 Year Limited Warranty||Worry Free 5 Year Limited Warranty||Worry Free 5 Year Limited Warranty||Worry Free 5 Year Limited Warranty||Worry Free 5 Year Limited Warranty|
|Memory Foam 6 Inch Mattress||Memory Foam 8 Inch Mattress||Memory Foam 10 Inch Mattress||Memory Foam 12 Inch Mattress||Memory Foam 14 Inch Grand Mattress|
|Height||6 Inches||8 Inches||10 Inches||12 Inches||14 Inches|
|Type||Smooth Top||Smooth Top||Smooth Top||Smooth Top||Grand Top|
|Mattress Layer||1.5 inches Memory Foam||2 inches Memory Foam||3 inches Memory Foam||3 inches Memory Foam||1 inch Memory Foam Quilted Cover|
|4.5 inches High-density Base Support Foam||2 inches of Pressure Relieving Comfort Foam||2 inches of Pressure Relieving Comfort Foam||3 inches of Pressure Relieving Comfort Foam||2.5 inches Memory Foam|
|4 inches High-density Base Support Foam||5 inches High-density Base Support Foam||6 inches High-density Base Support Foam||3.5 inches of Pressure Relieving Comfort Foam|
|3.5 inches Airflow Foam|
|3.5 inches High-density Base Support Foam|
|Cover details||Soft Knitted Fabric||Soft Knitted Fabric||Soft Knitted Jacquard Fabric||Soft Knitted Jacquard Fabric||Soft Knitted Jacquard Cover Fabric|
Rest easy with the memory foam support of the Sleep Master 8 Inch Memory Foam mattress from Zinus, pioneers in comfort innovation. The Sleep Master Memory Foam 8 Inch Mattress provides conforming comfort with a memory foam layer that molds to the natural shape of your body. The full support high density foam base layer provides long lasting durability and stability. The Sleep Master 8 Inch Memory Foam Mattress provides the perfect balance of support and comfort to ensure that you get a refreshing night's sleep. Please open your mattress package within 72 hours of receipt and allow 48 hours for your new mattress to return to its original, plush shape. Worry free 10 year limited warranty. Another comfort innovation from Zinus. Pioneering comfort.
Compare to similar items
|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Item Dimensions||76 x 80 x 8 in||76 x 80 x 12 in||76 x 80 x 8 in||14 x 85 x 9 in||76 x 80 x 8 in||76 x 80 x 8 in|
|Item Firmness Description||extra_plush||Plush||Plush||firm||Firm||Firm|
|Material Type||Memory Foam||Foam||Foam||Foam||Foam||Foam|
Top customer reviews
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Here are some factors that coincide with my experience. With my Garmond health monitor, I could see a distinct positive difference in my deep sleep cycle between the previous mattress and this Zinus Sleep Master. I used to fall asleep with books, magazines, remote control on the bed next to me and wake up with them on the floor. Now, they stay right where I left them. I may roll over once or twice but I usually wake up in the same position I fell asleep in and when I wake up, I'm awake! It's almost scary to realize how much of my life went by without this kind of rest.
I did read a ton of comments and the ones that cause most concern I'll compare. First, the packaging was fine. The box is big and bulky but I could carry it up 2 flights of stairs without rest or the need for help. The mattress comes vacuum sealed in a thick plastic wrap. Be careful slicing it open as it's tight on the mattress and you can accidentally cut the removable (and washable) zippered wrap or even into the mattress itself. Regarding the odor that people have noted in other comments. There was a factory/chemical/plastic smell. I'd have to say something closer or comparable to a very light 'new car' smell. Like anything new I wear or sleep under, I washed the thin zippered wrap by itself and dried it once. I've always put a couple dryer sheets on a mattress when I change sheets and did so again with the Zinus mattress. There was no chemical smell after washing the wrap and I'm actually in bed now laying on it while writing this review and there's no smell at all.
There was no mold anywhere to be seen. It's unfortunate that people experienced it and I'm not sure if it's a factory issue or a storage issue. Both mattresses came vacuum sealed in heavy plastic - heavy enough to keep the mattress compressed until it was removed from the box AND cut open. I didn't see it mentioned whether or not the mattress seal was broken or the box it came in had any damage. I'd be turned off as well if I saw that kind of mold and wouldn't buy again but having slept on it - It's worth returning for a new one in my opinion.
It did take several hours to uncompress. No more than 24 hours for the 4" and 8" sizes but we both slept on them the same evening and experienced an incredible sleep.
I did purchase two collapsible smart frames (another great purchase I'll have to review later). There's literally no need for a box spring in my setup as the smart frames are high and built to use bins underneath for storage. As is, they would replace your current mattress and sit on top of your current box spring.
My daughter had a fruit punch Gatorade (red) that was not sealed all the way in her soccer bag. It leaked into the center of the mattress about a month ago. To clean, we used a little detergent and warm water to saturate the spot and pressed a towel down to absorb it. Repeated until there was no red coming up but there is a noticeable red stain (as there would be on any mattress I'm sure). What made it easy to absorb is that you can push down into the mattress without air or spring coils so saturating the spot with clean water and detergent really got the bulk Gatorade out.
In the future, I would get the 12" for myself (because I enjoy a high bed) and the 8" can go to the guest room. I'll be getting another 4" full size for the pull out sofa mattress and I'll get my daughter a 4" twin when she goes off to college.
At first, this mattress was very firm. However, having just bought one for ourselves, I know just how to soften it. For the first two weeks, every night, before bedtime, I "activated" my mattress by doing the happy dance on it. No,.....Im not being naughty, I actually walked around on the mattress (with socks on) and it softened it enough to conform well to my body. I know it sounds weird, but it works!! Even to this day, if I want my mattress softer, I just get up on it and walk around for about 30 seconds! Just be sure to wait 24 hours after opening the mattress, so that it has a chance to self inflate evenly. We have this mattress on a 16" steel platform frame that also serves as the box spring. I have become a huge fan of them due to additional storage space they create underneath.
The odor that people talk about smelled like a freshly painted room and left almost immediately.
I find this to be most comfortable with just me in the bed. My husband weighs more than me which creates a slope for me. This problem is not limited to this mattress, I have the same problem with my other mattresses. I did notice when we stayed at a hotel with a king size bed, I was able to move far enough away to be on a level laying field. So possibly the king size would eliminate that issue in this mattress as well.
If you have kids, open this in front of them, because its just plain fun and magical to watch it grow! It grew to 9 1/2" within a few minutes of opening and a full 10" by the next day.
Im not sure how to rate this. If I were to rate it based on the great value for the price, I would give it five stars. Personally, Im thrilled with it. But is it a five star mattress? No, I would have to say that there are definitely better mattresses out there for a significantly higher price. So, Im giving it four stars and just saying, I am 100% pleased with no regrets. I feel my money was well spent.