Dreamstar Dreamshadow High Density 1
Dreamstar Dreamshadow High Density 3

Dreamshadow High Density Mattress – EXTRA Firm

(15 customer reviews)


10 Mattress Firmness


The Dreamstar Dreamshadow High Density mattress is a completely foam based, two sided EXTRA firm mattress. We really want to stress the EXTRA as it is the firmest mattress we have ever stocked at Sleep Masters Canada. We recommend the Dreamstar Dreamshadow High Density mattress for back and stomach sleepers only. Some side sleepers can find great comfort on this mattress but if you are a strict side sleeper, we recommend that you first test it out in our mattress store in Toronto before making a purchase.

Here are just a few of the key benefits for the Dreamstar Dreamshadow HD mattress:

1. Extra Firm Lovers Dream

If you are somebody who enjoys an extra firm mattress, you simply cannot go wrong with the Dreamstar Dreamshadow HD. With edge to edge high density foam, the sleep surface area is maximized and the mattress provides the same extra firm comfort level on all sides of the mattress.

2. Durability

The Dreamstar Dreamshadow HD mattress is also a super durable mattress. The ability to flip and sleep on both sides of the mattress helps extend the lifetime of the mattress and we expect this mattress to last anywhere between 8-12 years. This mattress comes with a 10 year manufacturers warranty.

3. Heavy Duty

Another key benefit for the Dreamstar Dreamshadow HD mattress is that it is a great choice for heavier folks! Heavier folks require firmer & more durable mattresses which do not sag in too much and make it difficult to move around in.

Soft Cotton Feel Fibers

Beautiful breathable soft touch feel designed to intensify both air flow and moisture helping to promote balanced temperature at the sleep surface.

Green Bio High Density Foam

Soy based bio foam offers improved durability, strength and support over conventional foam cores. Based on natural renewable materials, soy foam provides higher level of comfort.


Ontario: 3-5 Business Days

All Other Provinces: 5-7 Business Days


Twin/Single: 38″ x 74″ x 11″
Twin XL/Single XL: 38″ x 80″ x 11″
Full/Double: 54″ x 74″ x 11″
Full XL/ Double XL: 54″ x 80″ x 11″
Queen: 60″ x 80″ x 11″
King: 76″ x 80″ x 11″


The manufacturer of this mattress currently does not have any photography available so we took it upon ourselves. We are sorry for the terrible photoshoot 🙂

  1. Nova

    Tried a couple “extra firm” mattresses which really were not firm enough. This is exactly what i was looking for. It is actually extra firm and it’s been great for my back.

  2. Albert V

    I went in and asked for the firmest mattress they have. They showed me this one and within 30 seconds I knew it was the right choice for me. Great bed!

  3. Jeremy Smith

    The entire package was amazing but the mattress is just incredible. I thought waking up with a sore back was just who I was now but boy was I wrong. After my first night sleeping on the mattress I woke up pain free and energized! I’m a SleepMastersCanada customer for life!

  4. April B

    This is the firmest mattress I have had and I am enjoying great sleep. Not waking up with any sore points and I think it is just a great mattress for people who do a lot of sports and yoga etc.

  5. Esther L

    I know it may not be the most comfortable mattress as most people look for softer more cushioned mattresses but this is exactly what I wanted. Can’t believe I was able to find something this firm which is also two sided.

  6. Davinder

    This is a very good mattress for my back pain!

  7. Tayler A

    Great mattress with the firmness that I need for my back. Still somehow quite comfortable though!

  8. Lee

    Very very good!

  9. Cordelia

    I am very please with my mattress, it is very firm just the way I like it. I would buy another mattress from Sleep Masters Canada when the time comes, Thank you.

  10. Frank S

    Best way to describe this mattress is that it feels like a comfortable park bench :). It really is extra firm and just what I needed for my back.

  11. Sheena

    Was so difficult to find a mattress like this which is really firm and also 2 sided. As soon as I tried it in store I was sold!

  12. Jaspreet

    No kidding, this thing is really super firm!

  13. Shan S

    Just what I was looking for so thanks guys. Also, there aren’t many companies i’ve seen that made their own videos and I just thought that was a nice way of connecting with your clients. Thanks again.

  14. Kiesha

    Didn’t think it would be possible to find a mattress this firm but it really is tough as nails. Also great job on the video guys it helps to make a decision 🙂

  15. Valerie M

    Waaaayyyy too firm. Nothing wrong with the mattress or the service and I could see why someone would really like this mattress but I definitely made a mistake going this firm. Thankfully, I had it exchanged for the one level softer recommended to me .

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